/* Custom Font */
@font-face {
    font-family: 'CircularXX';
    src: url('fonts/CircularXX-Book.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

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

html {
    overflow-x: hidden !important;
    max-width: 100%;
    width: 100%;
    overflow-y: scroll; /* prevent horizontal scrollbar from shifting layout */
    -webkit-overflow-scrolling: touch;
}

:root {
    /* Colors - Emergence brand palette */
    --color-primary: #FF5B04;        /* Pulse Ember */
    --color-primary-dark: #E55004;
    --color-primary-soft: rgba(255, 91, 4, 0.08);
    --color-black: #1A1A1A;          /* Almost Black */
    --color-white: #F7F3EC;          /* Warm Ivory */
    --color-surface: #FFFFFF;
    --color-gray-100: #F0EDE6;
    --color-gray-200: #E6E2DA;
    --color-gray-300: #C8C4BC;
    --color-gray-700: #4A4A4A;
    --color-gray-800: #2E2E2E;
    --color-gray-900: #222222;

    /* Typography */
    --font-sans: 'CircularXX', 'Circular Std', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    background-image: url('images/background1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow-x: hidden !important;
    max-width: 100%;
    width: 100%;
    min-width: 0;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.container {
    max-width: 1200px;
    width: 100%;
    min-width: 0;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(1.75rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

.lead-text {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-gray-800);
}

.body-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-700);
}

/* Top announcement banner (above nav) */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    z-index: 1000;
    box-sizing: border-box;
}

.top-banner {
    width: 100%;
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.9rem;
    text-align: center;
    max-height: 8rem;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease, margin 0.3s ease;
}

/* Hide banner when user scrolls down (desktop only; mobile hides banner via media query) */
body.banner-scrolled .top-banner {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
}

.top-banner a {
    color: var(--color-white);
    text-decoration: underline;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.top-banner a:hover {
    color: var(--color-primary);
}

.top-banner .banner-pill {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.top-banner.hidden {
    display: none;
}

/* Ensure content clears fixed site header (banner + nav) */
body.has-top-banner .hero {
    padding-top: 14rem;
}

/* Hackathon entry modal */
.hackathon-modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.hackathon-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.hackathon-modal {
    background-color: var(--color-white);
    border-radius: 16px;
    max-width: 520px;
    width: 100%;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.2);
    position: relative;
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.hackathon-modal-overlay.visible .hackathon-modal {
    transform: scale(1);
}

.hackathon-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2rem;
    height: 2rem;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--color-gray-700);
    transition: color var(--transition-fast);
}

.hackathon-modal-close:hover {
    color: var(--color-black);
}

.hackathon-modal-body {
    padding: 2.5rem 2rem;
}

.hackathon-modal-body h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

.hackathon-modal-body .modal-subtitle {
    font-size: 1.1rem;
    color: var(--color-gray-700);
    margin-bottom: 1rem;
}

.hackathon-modal-body p {
    color: var(--color-gray-700);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.hackathon-modal-body .btn {
    display: inline-block;
}

/* Navigation */
.nav {
    position: relative;
    width: 100%;
    max-width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: var(--transition-base);
    box-sizing: border-box;
}

.nav-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    box-sizing: border-box;
}

.nav-banner {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-decoration: none;
    color: var(--color-primary);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.nav-banner:hover {
    color: #E55004;
}

.nav-banner-inner {
    display: inline-block;
    padding-left: 100%;
    animation: nav-banner-scroll 10s linear infinite;
}

@keyframes nav-banner-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-100%); }
}

/* Logo block: link (logo image) + non-linked subtitle */
.nav-logo-wrap {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
}

.nav-logo {
    display: inline-block;
    text-decoration: none;
    color: inherit;
    line-height: 0;
}

.nav-logo .logo-img {
    height: 28px;
    width: auto;
    display: block;
    /* White SVG on light nav: invert so it's visible */
    filter: invert(1) brightness(0);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--color-black);
}

.logo-sub {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--color-gray-700);
    text-transform: uppercase;
}

/* Hamburger toggle - hidden on desktop */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 6px;
    transition: background var(--transition-fast);
    z-index: 1002;
}
.nav-toggle:hover {
    background: var(--color-gray-100);
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-gray-800);
    border-radius: 1px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--color-gray-700);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.nav-cta {
    padding: 0.6rem 1.5rem;
    background-color: var(--color-black);
    color: var(--color-white) !important;
    border-radius: 6px;
    transition: all var(--transition-base);
}

.nav-cta:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #E55004;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 91, 4, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-gray-700);
    border: 2px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background-color: var(--color-primary-soft);
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

btn-secondary2 {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-gray-300);
}

.btn-secondary2:hover {
    background-color: var(--color-primary-soft);
    color: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}
/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    background-color: var(--color-white);
    background-image: url('images/hero-background.png');
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    color: var(--color-black);
    position: relative;
    overflow: visible;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(100deg, var(--color-white) 40%, transparent 72%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    min-width: 0; /* allow shrinking so text can wrap inside flex/grid */
    overflow-wrap: break-word;
}

.hero-title {
    font-size: clamp(1.75rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--color-black);
}

.hero-title .highlight {
    color: var(--color-primary);
    position: relative;
}

.hero-subtitle {
    font-size: 1.35rem;
    line-height: 1.6;
    color: var(--color-gray-700);
    margin-bottom: 3rem;
    max-width: 800px;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
    max-width: 100%;
}

.section-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.section-title {
    max-width: 800px;
    margin: 0 auto;
}

/* Shift Section */
.shift-section {
    background-color: var(--color-gray-100);
}

.shift-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    min-width: 0;
}

.shift-card {
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-base);
    min-width: 0;
}

.shift-card:hover {
    transform: translateY(-5px);
}

.shift-card.highlight-card {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-800) 100%);
    color: var(--color-white);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.shift-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.shift-card.highlight-card .shift-label {
    color: var(--color-primary);
}

.shift-card h3 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

.shift-card.highlight-card p {
    color: var(--color-gray-300);
}

.shift-arrow {
    font-size: 3rem;
    color: var(--color-primary);
    font-weight: 300;
}

.shift-thesis {
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    min-width: 0;
}

.thesis-statement {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--color-gray-800);
}

.thesis-statement strong {
    color: var(--color-black);
}

/* Why Now Section */
.why-now-section {
    background-color: var(--color-primary);
    background-image: url('images/dots-background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-black);
}

.why-now-section .section-title {
    color: var(--color-black);
}

.why-now-content {
    max-width: 1100px;
    margin: 0 auto;
    min-width: 0;
}

.why-now-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.why-now-card {
    background-color: rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.why-now-card:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.why-now-card h3 {
    margin-bottom: 1rem;
    color: var(--color-black);
    font-size: 1.5rem;
}

.why-now-card p {
    color: #1a1a1a;
    line-height: 1.7;
}

.why-now-statement {
    background-color: rgba(0, 0, 0, 0.08);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.why-now-statement p {
    font-size: 1.35rem;
    line-height: 1.7;
    color: var(--color-black);
    font-weight: 500;
    max-width: 800px;
    margin: 0 auto;
}

/* Mission Section */
.mission-section {
    background-color: var(--color-white);
}

.mission-content {
    max-width: 900px;
    margin: 0 auto 4rem;
}

.mission-primary {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.milestone-text {
    background-color: var(--color-gray-100);
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
    margin-top: 1rem;
}

.milestone-text strong {
    color: var(--color-primary);
}

.mission-impact {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.impact-item {
    padding: 2rem;
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-800) 100%);
    color: var(--color-white);
    border-radius: 12px;
    transition: transform var(--transition-base);
}

.impact-item:hover {
    transform: translateY(-5px);
}

.impact-item h4 {
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.impact-item p {
    color: var(--color-gray-300);
    font-size: 0.95rem;
}

/* Belief Section */
.belief-section {
    background-color: var(--color-white);
    background-image: url('images/background1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-black);
}

.belief-section .section-title {
    color: var(--color-black);
}

.belief-intro {
    font-size: 1.25rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--color-gray-700);
}

.belief-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.belief-card {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
}

.belief-card:hover {
    background-color: rgba(255, 255, 255, 0.9);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
}

.belief-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.belief-card h3 {
    margin-bottom: 1rem;
    color: var(--color-black);
}

.belief-card p {
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* Team Leadership Section */
.team-section {
    background-color: var(--color-white);
}

.team-content {
    max-width: 1000px;
    margin: 0 auto;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.team-member {
    background-color: var(--color-gray-100);
    padding: 3rem;
    border-radius: 12px;
    transition: all var(--transition-base);
    border-left: 4px solid transparent;
}

.team-member:hover {
    border-left-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.team-role {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.team-member h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-black);
}

.team-affiliation {
    font-size: 1rem;
    color: var(--color-gray-700);
    margin-bottom: 1rem;
    font-weight: 500;
}

.team-bio {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-700);
}

/* Research Section */
.research-section {
    background-color: var(--color-gray-100);
}

.research-content {
    max-width: 1000px;
    margin: 0 auto;
}

.research-intro {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.research-areas {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.research-area {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.research-area:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.research-area h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.research-area p {
    color: var(--color-gray-700);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.research-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.research-link:hover {
    gap: 0.75rem;
    color: #E55004;
}

/* Work Section */
.work-section {
    background-color: var(--color-gray-100);
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
    gap: 2rem;
}

.work-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
    border-top: 3px solid transparent;
}

.work-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-top-color: var(--color-primary);
}

.work-card h3 {
    margin-bottom: 1rem;
    font-size: 1.35rem;
    color: var(--color-black);
}

.work-card p {
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* India Section */
.india-section {
    background-color: var(--color-white);
}

.india-content {
    max-width: 900px;
    margin: 0 auto;
}

.india-content .lead-text {
    text-align: center;
    margin-bottom: 4rem;
}

.india-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.pillar {
    text-align: center;
    padding: 2rem;
}

.pillar h4 {
    margin-bottom: 0.75rem;
    color: var(--color-black);
    font-size: 1.25rem;
}

.pillar p {
    color: var(--color-gray-700);
}

/* Talent Section */
.talent-section {
    background-color: var(--color-gray-100);
}

.talent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
    gap: 2rem;
}

.talent-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.talent-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.talent-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.talent-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--color-black);
}

.talent-card p {
    color: var(--color-gray-700);
    line-height: 1.6;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-900) 100%);
    color: var(--color-white);
    text-align: center;
    padding: 6rem 0;
}

.contact-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.contact-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-cta .btn-primary {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.contact-cta .btn-primary:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

/* Footer */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 4rem;
    margin-bottom: 3rem;
    min-width: 0;
}

.footer-logo .logo-text {
    color: var(--color-white);
    font-size: 1.5rem;
}

.footer-logo .logo-sub {
    color: var(--color-gray-300);
}

.footer-tagline {
    margin-top: 1rem;
    color: var(--color-gray-300);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: var(--color-white);
    font-size: 1rem;
}

.footer-column a {
    display: block;
    margin-bottom: 0.75rem;
    color: var(--color-gray-300);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray-800);
    text-align: center;
    color: var(--color-gray-300);
    font-size: 0.875rem;
}

/* Responsive Design */

/* Tablet and below: show hamburger, collapse nav into menu */
@media (max-width: 968px) {
    .nav-container {
        flex-wrap: wrap;
    }

    .nav-toggle {
        display: flex;
        order: 2;
        margin-left: auto;
    }

    .nav-links {
        display: none;
        order: 3;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 1rem 0 0;
        margin-top: 0.5rem;
        border-top: 1px solid var(--color-gray-200);
    }

    .nav.nav-mobile-open .nav-links {
        display: flex;
    }

    .nav-links a,
    .nav-links .nav-dropdown > a {
        padding: 0.875rem 0;
        font-size: 1rem;
        border-bottom: 1px solid var(--color-gray-200);
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .nav-links .nav-dropdown .dropdown-content {
        position: static;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0 0 0 1rem;
        margin: 0 0 0.5rem;
        max-height: none;
        background: var(--color-gray-100);
        border-left: 3px solid var(--color-primary);
    }

    .nav-links .nav-dropdown.open .dropdown-content {
        display: block;
    }

    .nav-links .nav-cta {
        margin-top: 0.5rem;
        text-align: center;
        justify-content: center;
    }

    .shift-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .shift-arrow {
        transform: rotate(90deg);
        text-align: center;
    }

    .shift-card,
    .shift-thesis {
        padding: 2rem;
    }

    .why-now-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .why-now-card,
    .why-now-statement {
        padding: 2rem;
    }

    .mission-impact {
        grid-template-columns: 1fr;
    }

    .impact-item {
        padding: 1.5rem;
    }

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

    .belief-card {
        padding: 2rem;
    }

    .team-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .team-member {
        padding: 2rem;
    }

    .research-areas {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .research-area {
        padding: 2rem;
    }

    .india-pillars {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    /* Hide top banner on mobile/tablet */
    .top-banner {
        display: none !important;
    }

    /* Header is nav-only on mobile, so less top padding */
    body.has-top-banner .hero {
        padding-top: 6rem;
    }
}

/* Small tablet / large phone */
@media (max-width: 768px) {
    .section-title {
        font-size: clamp(1.5rem, 4vw, 2.25rem);
    }

    .lead-text {
        font-size: 1.125rem;
    }

    .body-text {
        font-size: 1rem;
    }

    .contact-section {
        padding: 4rem 0;
    }

    .contact-content h2 {
        font-size: 1.75rem;
    }

    .contact-content p {
        font-size: 1.1rem;
    }

    .hackathon-modal-body {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 640px) {
    html {
        -webkit-text-size-adjust: 100%;
    }

    body {
        touch-action: pan-y;
        background-attachment: scroll;
    }

    .container {
        padding-left: 1rem;
        padding-right: 1rem;
        max-width: 100%;
    }

    .container > * {
        min-width: 0;
        max-width: 100%;
    }

    .nav-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Banner hidden on mobile; hero only needs to clear nav */
    .hero {
        padding: 6rem 0 4rem;
        padding-top: max(6rem, calc(6rem + env(safe-area-inset-top, 0px)));
        min-height: auto;
    }

    .hero .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .hero-content {
        padding-top: 0;
        width: 100%;
    }

    .hero-title {
        font-size: 1.5rem;
        line-height: 1.4;
        margin-bottom: 1rem;
        overflow-wrap: break-word;
        word-wrap: break-word;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 2rem;
        overflow-wrap: break-word;
        word-wrap: break-word;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
        text-align: center;
        min-width: 0;
    }

    .shift-card,
    .shift-thesis {
        padding: 1.5rem;
    }

    .thesis-statement {
        font-size: 1.1rem;
    }

    .milestone-text {
        padding: 1.5rem;
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-content {
        gap: 2rem;
    }
}

/* Very small phones - hero clears nav only (banner hidden on mobile) */
@media (max-width: 480px) {
    .hero {
        padding-top: max(6.5rem, calc(6.5rem + env(safe-area-inset-top, 0px)));
    }
}

@media (max-width: 380px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .hero {
        padding-top: max(7rem, calc(7rem + env(safe-area-inset-top, 0px)));
    }

    .hero-title {
        font-size: 1.35rem;
    }

    .btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.8125rem;
    }
}

/* Prevent fixed nav from covering content when scrolling to anchors */
#mission,
#team,
#research,
#work,
#talent,
#contact,
#overview,
#challenges,
#prizes,
#schedule,
#register {
    scroll-margin-top: 8rem;
}

@media (max-width: 968px) {
    /* Banner hidden on mobile; header is nav-only */
    #mission,
    #team,
    #research,
    #work,
    #talent,
    #contact,
    #overview,
    #challenges,
    #prizes,
    #schedule,
    #register {
        scroll-margin-top: 6rem;
    }
}

@media (max-width: 640px) {
    #mission,
    #team,
    #research,
    #work,
    #talent,
    #contact,
    #overview,
    #challenges,
    #prizes,
    #schedule,
    #register {
        scroll-margin-top: 6.5rem;
    }
}

/* Smooth Scrolling - keep overflow-x: hidden from above */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
}