/* ============================================================
   ADYA VENTURES — Enterprise Recruitment Website
   Design System: Deep Navy / White / Emerald
   Typography: Inter
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
    /* Color Palette */
    --color-navy-900: #020617;
    --color-navy-800: #0a0f1e;
    --color-navy-700: #0f172a;
    --color-navy-600: #1e293b;
    --color-navy-500: #334155;
    --color-navy-400: #475569;
    --color-navy-300: #64748b;
    --color-navy-200: #94a3b8;
    --color-navy-100: #cbd5e1;
    --color-navy-50: #f1f5f9;

    --color-white: #ffffff;
    --color-white-90: rgba(255, 255, 255, 0.9);
    --color-white-80: rgba(255, 255, 255, 0.8);
    --color-white-60: rgba(255, 255, 255, 0.6);
    --color-white-40: rgba(255, 255, 255, 0.4);
    --color-white-20: rgba(255, 255, 255, 0.2);
    --color-white-10: rgba(255, 255, 255, 0.1);
    --color-white-05: rgba(255, 255, 255, 0.05);

    --color-emerald-500: #10b981;
    --color-emerald-400: #34d399;
    --color-emerald-300: #6ee7b7;
    --color-emerald-200: #a7f3d0;
    --color-emerald-100: #d1fae5;
    --color-emerald-50: #ecfdf5;
    --color-emerald-500-20: rgba(16, 185, 129, 0.2);
    --color-emerald-500-15: rgba(16, 185, 129, 0.15);
    --color-emerald-500-10: rgba(16, 185, 129, 0.1);
    --color-emerald-500-05: rgba(16, 185, 129, 0.05);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    --space-6xl: 10rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow-emerald: 0 0 40px rgba(16, 185, 129, 0.15);
    --shadow-glow-navy: 0 0 60px rgba(15, 23, 42, 0.3);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Layout */
    --max-width: 1200px;
    --max-width-narrow: 900px;
    --nav-height: 72px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-navy-200);
    background-color: var(--color-navy-900);
    overflow-x: hidden;
}

::selection {
    background-color: var(--color-emerald-500-20);
    color: var(--color-emerald-400);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--color-emerald-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* --- Skip Link --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--color-emerald-500);
    color: var(--color-navy-900);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-sm);
    font-weight: var(--font-weight-semibold);
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-md);
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    transition: background var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

.nav--scrolled {
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--color-white-05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-decoration: none;
    z-index: 1001;
}

.nav__logo-text {
    font-size: 1.35rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.nav__logo-accent {
    color: var(--color-emerald-500);
}

.nav__logo-tagline {
    font-size: 0.625rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-300);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav__link {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-200);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-white);
}

.nav__link--active {
    background: var(--color-white-05);
}

.nav__link--cta {
    background: var(--color-emerald-500);
    color: var(--color-navy-900) !important;
    font-weight: var(--font-weight-semibold);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    margin-left: var(--space-sm);
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav__link--cta:hover {
    background: var(--color-emerald-400);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

/* Mobile Nav Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: 1001;
    cursor: pointer;
}

.nav__toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav__toggle--active .nav__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav__toggle--active .nav__toggle-bar:nth-child(2) {
    opacity: 0;
}

.nav__toggle--active .nav__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Section Common --- */
.section__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-4xl);
}

.section__label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-emerald-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--color-emerald-500-10);
    border: 1px solid var(--color-emerald-500-20);
    border-radius: var(--radius-full);
}

.section__label--light {
    color: var(--color-emerald-300);
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.25);
}

.section__heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.section__heading-accent {
    color: var(--color-emerald-400);
}

.section__subtitle {
    font-size: 1.1rem;
    color: var(--color-navy-200);
    line-height: 1.7;
    max-width: 560px;
    margin: 0 auto;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
    cursor: pointer;
    border: none;
    line-height: 1;
}

.btn--primary {
    background: var(--color-emerald-500);
    color: var(--color-navy-900);
    box-shadow: 0 2px 10px rgba(16, 185, 129, 0.2);
}

.btn--primary:hover {
    background: var(--color-emerald-400);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.3);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--secondary {
    background: var(--color-white-10);
    color: var(--color-white);
    border: 1px solid var(--color-white-20);
    backdrop-filter: blur(10px);
}

.btn--secondary:hover {
    background: var(--color-white-20);
    border-color: var(--color-white-40);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 1rem 2.25rem;
    font-size: 1.05rem;
}

.btn--full {
    width: 100%;
    justify-content: center;
}

.btn--proposal {
    margin-top: var(--space-xl);
}

.btn__icon {
    transition: transform var(--transition-base);
}

.btn:hover .btn__icon {
    transform: translateX(3px);
}

.btn--proposal:hover .btn__icon {
    transform: translateY(3px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-4xl);
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
}

.hero__bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
}

.hero__bg-glow--1 {
    width: 600px;
    height: 600px;
    background: var(--color-emerald-500);
    top: -200px;
    right: -200px;
    animation: heroGlow1 8s ease-in-out infinite alternate;
}

.hero__bg-glow--2 {
    width: 400px;
    height: 400px;
    background: #3b82f6;
    bottom: -100px;
    left: -100px;
    animation: heroGlow2 10s ease-in-out infinite alternate;
}

@keyframes heroGlow1 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.2; }
    100% { transform: translate(-50px, 50px) scale(1.2); opacity: 0.35; }
}

@keyframes heroGlow2 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.15; }
    100% { transform: translate(50px, -30px) scale(1.3); opacity: 0.3; }
}

.hero__bg-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1px 1px at 40% 70%, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 60% 20%, rgba(255,255,255,0.5), transparent),
        radial-gradient(1px 1px at 80% 60%, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 10% 80%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1px 1px at 70% 40%, rgba(255,255,255,0.3), transparent),
        radial-gradient(1px 1px at 30% 50%, rgba(255,255,255,0.5), transparent),
        radial-gradient(1px 1px at 90% 15%, rgba(255,255,255,0.3), transparent);
}

.hero__container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    text-align: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-lg);
    background: var(--color-white-05);
    border: 1px solid var(--color-white-10);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-200);
    margin-bottom: var(--space-2xl);
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease-out;
}

.hero__badge-dot {
    width: 6px;
    height: 6px;
    background: var(--color-emerald-500);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero__heading {
    font-size: clamp(2.5rem, 5.5vw, 4rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero__heading-accent {
    color: var(--color-emerald-400);
    position: relative;
}

.hero__heading-accent::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-emerald-500-20);
    border-radius: 2px;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: var(--color-navy-200);
    line-height: 1.75;
    max-width: 640px;
    margin: 0 auto var(--space-2xl);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero__trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-300);
}

.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

.hero__scroll-text {
    font-size: 0.6875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-400);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-navy-400), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   WHY ADYA SECTION
   ============================================================ */
.why-adya {
    padding: var(--space-6xl) 0;
    position: relative;
}

.why-adya__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.why-card {
    background: var(--color-navy-800);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    cursor: default;
}

.why-card:hover,
.why-card:focus-within {
    transform: translateY(-4px);
    border-color: var(--color-emerald-500-20);
    box-shadow: var(--shadow-glow-emerald);
}

.why-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-emerald-500-10);
    border: 1px solid var(--color-emerald-500-20);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xl);
}

.why-card__title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.why-card__text {
    font-size: 0.9375rem;
    color: var(--color-navy-200);
    line-height: 1.65;
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
    padding: var(--space-6xl) 0;
    background: var(--color-navy-800);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-navy-700);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-emerald-500-20), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover,
.service-card:focus-within {
    transform: translateY(-2px);
    border-color: var(--color-emerald-500-15);
    box-shadow: var(--shadow-glow-emerald);
}

.service-card:hover::before,
.service-card:focus-within::before {
    opacity: 1;
}

.service-card__number {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-emerald-500);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
    font-feature-settings: 'tnum';
    font-variant-numeric: tabular-nums;
}

.service-card__title {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.service-card__text {
    font-size: 0.9375rem;
    color: var(--color-navy-200);
    line-height: 1.65;
}

/* ============================================================
   INDUSTRIES SECTION
   ============================================================ */
.industries {
    padding: var(--space-6xl) 0;
}

.industries__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.industry-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-navy-800);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
    cursor: default;
}

.industry-card:hover,
.industry-card:focus-within {
    transform: translateY(-2px);
    border-color: var(--color-emerald-500-20);
    background: var(--color-navy-700);
}

.industry-card__icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-emerald-500-10);
    border-radius: var(--radius-md);
}

.industry-card__title {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
}

/* ============================================================
   PROCESS SECTION
   ============================================================ */
.process {
    padding: var(--space-6xl) 0;
    background: var(--color-navy-800);
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.process__timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--color-emerald-500-20), var(--color-emerald-500-05), var(--color-emerald-500-20));
    transform: translateX(-50%);
}

.process__step {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--space-2xl);
    position: relative;
}

.process__step:last-child {
    margin-bottom: 0;
}

.process__step--left {
    flex-direction: row;
    padding-right: calc(50% + var(--space-2xl));
}

.process__step--right {
    flex-direction: row-reverse;
    padding-left: calc(50% + var(--space-2xl));
}

.process__step-marker {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-navy-800);
    border: 2px solid var(--color-emerald-500-20);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-emerald-400);
    z-index: 1;
    font-feature-settings: 'tnum';
    font-variant-numeric: tabular-nums;
}

.process__step-card {
    background: var(--color-navy-700);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.process__step-card:hover {
    border-color: var(--color-emerald-500-15);
    box-shadow: var(--shadow-glow-emerald);
}

.process__step-title {
    font-size: 1.05rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.process__step-text {
    font-size: 0.9rem;
    color: var(--color-navy-200);
    line-height: 1.6;
}

/* ============================================================
   CLIENT SUCCESS SECTION
   ============================================================ */
.client-success {
    padding: var(--space-6xl) 0;
}

.client-success__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.case-study {
    background: var(--color-navy-800);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.case-study:hover {
    transform: translateY(-4px);
    border-color: var(--color-emerald-500-15);
}

.case-study__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.case-study__category {
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-emerald-400);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-emerald-500-10);
    border-radius: var(--radius-full);
}

.case-study__metric {
    font-size: 0.875rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    background: var(--color-navy-600);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
}

.case-study__text {
    font-size: 0.9375rem;
    color: var(--color-navy-200);
    line-height: 1.65;
    margin-bottom: var(--space-xl);
    flex-grow: 1;
}

.case-study__quote {
    border-left: 3px solid var(--color-emerald-500-20);
    padding-left: var(--space-lg);
    margin: 0;
}

.case-study__quote p {
    font-size: 0.9rem;
    color: var(--color-navy-100);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.case-study__author strong {
    display: block;
    font-size: 0.875rem;
    color: var(--color-white);
    font-style: normal;
    font-weight: var(--font-weight-semibold);
}

.case-study__author span {
    font-size: 0.8125rem;
    color: var(--color-navy-300);
    font-style: normal;
}

.client-success__disclaimer {
    text-align: center;
    font-size: 0.75rem;
    color: var(--color-navy-400);
    margin-top: var(--space-2xl);
    font-style: italic;
}

/* ============================================================
   COMPARISON SECTION
   ============================================================ */
.comparison {
    padding: var(--space-6xl) 0;
    background: var(--color-navy-800);
    position: relative;
}

.comparison::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.comparison__table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-white-05);
    background: var(--color-navy-700);
}

.comparison__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.comparison__table thead th {
    padding: var(--space-lg) var(--space-xl);
    text-align: left;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    border-bottom: 1px solid var(--color-white-10);
    font-size: 0.875rem;
    letter-spacing: 0.02em;
}

.comparison__col--traditional {
    color: var(--color-navy-300) !important;
}

.comparison__col--adya {
    color: var(--color-emerald-400) !important;
}

.comparison__table tbody td {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--color-white-05);
    color: var(--color-navy-200);
    line-height: 1.5;
}

.comparison__table tbody tr:last-child td {
    border-bottom: none;
}

.comparison__table tbody tr {
    transition: background var(--transition-fast);
}

.comparison__table tbody tr:hover {
    background: var(--color-white-05);
}

.comparison__cell--traditional {
    color: var(--color-navy-300) !important;
}

.comparison__cell--adya {
    color: var(--color-white) !important;
    font-weight: var(--font-weight-medium);
}

.comparison__check {
    color: var(--color-emerald-400);
    margin-right: var(--space-xs);
    font-weight: var(--font-weight-bold);
}

/* ============================================================
   PROPOSAL SECTION
   ============================================================ */
.proposal {
    padding: var(--space-6xl) 0;
}

.proposal__card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    background: linear-gradient(135deg, var(--color-navy-700), var(--color-navy-800));
    border: 1px solid var(--color-white-10);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl);
    position: relative;
    overflow: hidden;
}

.proposal__card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-emerald-500-05), transparent 70%);
    pointer-events: none;
}

.proposal__content {
    position: relative;
    z-index: 1;
}

.proposal__heading {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.proposal__text {
    font-size: 1.05rem;
    color: var(--color-navy-200);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.proposal__features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.proposal__feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-navy-100);
    font-weight: var(--font-weight-medium);
}

.proposal__visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.proposal__document {
    width: 240px;
    height: 320px;
    background: var(--color-navy-600);
    border: 1px solid var(--color-white-10);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: rotate(2deg);
    transition: transform var(--transition-spring);
}

.proposal__document:hover {
    transform: rotate(0deg) scale(1.02);
}

.proposal__document-lines {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.proposal__document-line {
    height: 8px;
    background: var(--color-navy-400);
    border-radius: 4px;
}

.proposal__document-line--1 { width: 100%; }
.proposal__document-line--2 { width: 80%; }
.proposal__document-line--3 { width: 90%; }
.proposal__document-line--4 { width: 60%; }
.proposal__document-line--5 { width: 75%; }

.proposal__document-badge {
    position: absolute;
    bottom: var(--space-xl);
    left: var(--space-2xl);
    right: var(--space-2xl);
    padding: var(--space-md);
    background: var(--color-emerald-500);
    color: var(--color-navy-900);
    text-align: center;
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

/* ============================================================
   FAQ SECTION
   ============================================================ */
.faq {
    padding: var(--space-6xl) 0;
    background: var(--color-navy-800);
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.faq__list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq__item {
    background: var(--color-navy-700);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition-base);
}

.faq__item:hover {
    border-color: var(--color-white-10);
}

.faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-xl);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    text-align: left;
    transition: color var(--transition-fast);
}

.faq__question:hover {
    color: var(--color-emerald-400);
}

.faq__question[aria-expanded="true"] {
    color: var(--color-emerald-400);
}

.faq__icon {
    flex-shrink: 0;
    color: var(--color-navy-300);
    transition: transform var(--transition-base);
}

.faq__question[aria-expanded="true"] .faq__icon {
    transform: rotate(180deg);
    color: var(--color-emerald-400);
}

.faq__answer {
    padding: 0 var(--space-xl) var(--space-xl);
}

.faq__answer p {
    font-size: 0.9375rem;
    color: var(--color-navy-200);
    line-height: 1.7;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta {
    padding: var(--space-6xl) 0;
    position: relative;
    overflow: hidden;
}

.cta__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta__bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-emerald-500-10), transparent 70%);
}

.cta__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta__heading {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.cta__text {
    font-size: 1.1rem;
    color: var(--color-navy-200);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
    padding: var(--space-6xl) 0;
    background: var(--color-navy-800);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-white-10), transparent);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-4xl);
    align-items: start;
}

.contact__info {
    position: sticky;
    top: calc(var(--nav-height) + var(--space-2xl));
}

.contact__heading {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.contact__text {
    font-size: 1.05rem;
    color: var(--color-navy-200);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.contact__detail {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.contact__detail-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-emerald-500-10);
    border: 1px solid var(--color-emerald-500-20);
    border-radius: var(--radius-md);
}

.contact__detail-label {
    display: block;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-navy-300);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 2px;
}

.contact__detail-link {
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    transition: color var(--transition-fast);
}

.contact__detail-link:hover {
    color: var(--color-emerald-400);
}

.contact__detail-value {
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
}

.contact__brand {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-white-05);
}

.contact__brand-name {
    display: block;
    font-size: 1.25rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.contact__brand-tagline {
    font-size: 0.8125rem;
    color: var(--color-navy-300);
    letter-spacing: 0.1em;
}

/* Contact Form */
.contact__form-wrapper {
    background: var(--color-navy-700);
    border: 1px solid var(--color-white-05);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact__form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.contact__form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.contact__label {
    font-size: 0.8125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-navy-100);
}

.contact__label span {
    color: var(--color-emerald-400);
}

.contact__input {
    padding: 0.75rem 1rem;
    background: var(--color-navy-800);
    border: 1px solid var(--color-white-10);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.contact__input::placeholder {
    color: var(--color-navy-400);
}

.contact__input:focus {
    outline: none;
    border-color: var(--color-emerald-500);
    box-shadow: 0 0 0 3px var(--color-emerald-500-15);
}

.contact__select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.contact__select option {
    background: var(--color-navy-800);
    color: var(--color-white);
}

.contact__textarea {
    resize: vertical;
    min-height: 120px;
}

.contact__form-note {
    font-size: 0.75rem;
    color: var(--color-navy-400);
    text-align: center;
}

/* Form Validation & Feedback */
.contact__input--error {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}

.contact__error-msg {
    font-size: 0.75rem;
    color: #ef4444;
    font-weight: var(--font-weight-medium);
    animation: fadeInUp 0.2s ease-out;
}

.contact__success {
    background: var(--color-emerald-500-10);
    border: 1px solid var(--color-emerald-500-20);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    animation: fadeInUp 0.3s ease-out;
}

.contact__success p {
    font-size: 0.9375rem;
    color: var(--color-emerald-300);
    line-height: 1.6;
    margin: 0;
}

.btn__spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(15, 23, 42, 0.3);
    border-top-color: var(--color-navy-900);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.btn--success {
    background: var(--color-emerald-500) !important;
    pointer-events: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    padding: var(--space-4xl) 0 var(--space-2xl);
    border-top: 1px solid var(--color-white-05);
    background: var(--color-navy-900);
}

.footer__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.footer__main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

.footer__brand-name {
    font-size: 1.35rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.footer__brand-accent {
    color: var(--color-emerald-500);
}

.footer__brand-tagline {
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-navy-300);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: var(--space-xs);
}

.footer__brand-desc {
    font-size: 0.875rem;
    color: var(--color-navy-300);
    line-height: 1.6;
    margin-top: var(--space-lg);
    max-width: 360px;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.footer__links-title {
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-lg);
}

.footer__links-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    font-size: 0.875rem;
    color: var(--color-navy-300);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-white);
}

.footer__link--text {
    cursor: default;
}

.footer__link--text:hover {
    color: var(--color-navy-300);
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-white-05);
}

.footer__copyright {
    font-size: 0.8125rem;
    color: var(--color-navy-400);
}

.footer__bottom-links {
    display: flex;
    gap: var(--space-xl);
}

.footer__bottom-link {
    font-size: 0.8125rem;
    color: var(--color-navy-400);
    transition: color var(--transition-fast);
}

.footer__bottom-link:hover {
    color: var(--color-navy-200);
}

/* ============================================================
   ANIMATIONS — Intersection Observer triggered
   ============================================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.animate-on-scroll--visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll--delay-1 { transition-delay: 0.1s; }
.animate-on-scroll--delay-2 { transition-delay: 0.2s; }
.animate-on-scroll--delay-3 { transition-delay: 0.3s; }
.animate-on-scroll--delay-4 { transition-delay: 0.4s; }

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */

/* Tablet (1024px) */
@media (max-width: 1024px) {
    .why-adya__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .industries__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .client-success__grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }

    .proposal__card {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .proposal__visual {
        display: none;
    }

    .contact__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .contact__info {
        position: static;
    }

    .footer__main {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
}

/* Small Tablet (768px) */
@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    /* Mobile Navigation */
    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(2, 6, 23, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--transition-base);
    }

    .nav__menu--open {
        opacity: 1;
        pointer-events: all;
    }

    .nav__list {
        flex-direction: column;
        align-items: center;
        gap: var(--space-sm);
    }

    .nav__link {
        font-size: 1.25rem;
        padding: var(--space-md) var(--space-xl);
    }

    .nav__link--cta {
        margin-left: 0;
        margin-top: var(--space-md);
    }

    /* Sections */
    .section__heading {
        font-size: 1.75rem;
    }

    .hero__heading {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__trust {
        gap: var(--space-md);
    }

    .why-adya__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .services__grid {
        grid-template-columns: 1fr;
    }

    .industries__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process__timeline::before {
        left: 22px;
    }

    .process__step--left,
    .process__step--right {
        flex-direction: row;
        padding-left: 60px;
        padding-right: 0;
    }

    .process__step-marker {
        left: 22px;
    }

    .comparison__table {
        font-size: 0.8125rem;
    }

    .comparison__table thead th,
    .comparison__table tbody td {
        padding: var(--space-md);
    }

    .proposal__features {
        grid-template-columns: 1fr;
    }

    .contact__form-row {
        grid-template-columns: 1fr;
    }

    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

/* Mobile (480px) */
@media (max-width: 480px) {
    .section__container {
        padding: 0 var(--space-lg);
    }

    .hero__actions {
        flex-direction: column;
        width: 100%;
    }

    .hero__actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero__trust {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .industries__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm);
    }

    .industry-card {
        padding: var(--space-md);
    }

    .industry-card__title {
        font-size: 0.8125rem;
    }

    .proposal__card {
        padding: var(--space-xl);
    }

    .footer__links {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   ACCESSIBILITY — Reduced Motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
    .nav,
    .hero__scroll-indicator,
    .hero__bg,
    .cta__bg,
    .footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .section__heading,
    .hero__heading,
    .cta__heading {
        color: black;
    }
}