/*
 * ═══════════════════════════════════════════════════════════════
 * CONTACT PAGE — saṁvādaḥ (correspondence)
 * Harmonious with index_style.css, distinct identity
 * ═══════════════════════════════════════════════════════════════
 */

/*
 * FONT FACES — Self-hosted, no external API calls
 */
@font-face {
    font-family: 'SaiIndira';
    src: url('/fonts/SaiIndira.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Shared palette from index_style.css */
    --void: #000000;
    --obsidian: #0a0a0a;
    --slate: #1a1a1a;
    --ghost: #2a2a2a;
    --mist: #888888;
    --pearl: #cccccc;
    --bone: #e8e8e8;
    --light: #ffffff;

    /* Accent colors */
    --gold: #FFD700;
    --neon-pink: #ff69b4;
    --neon-orange: #ff8c42;
    --neon-emerald: #00ff88;
    --neon-purple: #9f5fff;
    --neon-cyan: #00d4ff;

    /* Glow effects */
    --pink-glow: rgba(255, 105, 180, 0.4);
    --orange-glow: rgba(255, 140, 66, 0.4);
    --emerald-glow: rgba(0, 255, 136, 0.4);
    --gold-glow: rgba(255, 215, 0, 0.4);
    --cyan-glow: rgba(0, 212, 255, 0.4);

    /* Contact page accent — subtle teal/cyan for correspondence theme */
    --contact-accent: #00b8a9;
    --contact-glow: rgba(0, 184, 169, 0.4);
}

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

/* Global focus indicators for keyboard accessibility */
a:focus-visible {
    outline: 2px solid var(--neon-pink);
    outline-offset: 3px;
}

button:focus-visible,
[role="button"]:focus-visible {
    outline: 2px solid var(--neon-orange);
    outline-offset: 3px;
}

input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--contact-accent);
    outline-offset: 3px;
}

/* Skip link for keyboard navigation */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--neon-emerald);
    color: var(--void);
    padding: 12px 24px;
    font-weight: bold;
    text-decoration: none;
    z-index: 10000;
    border-radius: 4px;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 16px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    background: var(--void);
    color: var(--pearl);
    font-family: 'Space Mono', monospace;
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Subtle grid background — matches index */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

/* Tamil text rendering */
.tamil-text {
    font-family: 'SaiIndira', 'Noto Serif Tamil', 'Tamil Sangam MN', serif;
}

/*
 * ═══════════════════════════════════════════════════════════════
 * NAVIGATION — Fixed, matches index_style.css
 * ═══════════════════════════════════════════════════════════════
 */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    background: linear-gradient(to bottom, var(--void) 0%, transparent 100%);
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--mist);
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: var(--light);
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--mist);
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--contact-accent);
    box-shadow: 0 0 8px var(--contact-glow);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

/* Active page indicator */
.nav-links a.active {
    color: var(--contact-accent);
}

.nav-links a.active::after {
    width: 100%;
}

/*
 * ═══════════════════════════════════════════════════════════════
 * MAIN CONTENT CONTAINER
 * ═══════════════════════════════════════════════════════════════
 */
main {
    padding-top: 6rem;
    position: relative;
    z-index: 1;
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem 6rem;
}

/*
 * ═══════════════════════════════════════════════════════════════
 * PAGE HEADER
 * ═══════════════════════════════════════════════════════════════
 */
.contact-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeSlideUp 0.8s ease forwards;
}

.contact-header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--light);
    margin-bottom: 1rem;
    text-shadow: 0 0 20px var(--contact-glow);
}

.contact-header .subtitle {
    font-size: 0.85rem;
    color: var(--mist);
    letter-spacing: 0.1em;
}

/*
 * ═══════════════════════════════════════════════════════════════
 * CONTENT SECTIONS — Card-like containers
 * ═══════════════════════════════════════════════════════════════
 */
.content-section {
    background: var(--obsidian);
    border: 1px solid var(--ghost);
    border-radius: 4px;
    padding: 2.5rem;
    margin-bottom: 3rem;
    animation: fadeSlideUp 0.8s ease forwards;
    animation-delay: 0.1s;
    opacity: 0;
}

.content-section:nth-child(2) { animation-delay: 0.2s; }
.content-section:nth-child(3) { animation-delay: 0.3s; }
.content-section:nth-child(4) { animation-delay: 0.4s; }

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--contact-accent);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--ghost);
    text-shadow: 0 0 10px var(--contact-glow);
}

/*
 * ═══════════════════════════════════════════════════════════════
 * TYPOGRAPHY
 * ═══════════════════════════════════════════════════════════════
 */
.content-section p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--pearl);
    margin-bottom: 1.25rem;
}

.content-section p:last-child {
    margin-bottom: 0;
}

.content-section p.lead {
    font-size: 1.05rem;
    color: var(--bone);
}

.content-section em {
    color: var(--gold);
    font-style: italic;
    text-shadow: 0 0 4px var(--gold-glow);
}

.content-section strong {
    color: var(--light);
    font-weight: 600;
}

.content-section a {
    color: var(--contact-accent);
    text-decoration: none;
    border-bottom: 1px dotted var(--contact-accent);
    transition: all 0.3s ease;
}

.content-section a:hover {
    color: var(--neon-cyan);
    border-bottom-color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--cyan-glow);
}

/*
 * ═══════════════════════════════════════════════════════════════
 * CONTACT METHODS — Interactive cards
 * ═══════════════════════════════════════════════════════════════
 */
.contact-method {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--slate);
    border: 1px solid var(--ghost);
    border-radius: 4px;
    margin: 1.25rem 0;
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: var(--contact-accent);
    box-shadow: 0 0 20px var(--contact-glow);
    transform: translateX(4px);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--contact-accent);
    min-width: 40px;
    text-align: center;
    filter: drop-shadow(0 0 4px var(--contact-glow));
}

.contact-info {
    flex: 1;
}

.contact-label {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    color: var(--mist);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.contact-value {
    font-size: 1rem;
    color: var(--bone);
}

.contact-value a {
    color: var(--contact-accent);
    text-decoration: none;
    border-bottom: none;
}

.contact-value a:hover {
    color: var(--neon-cyan);
}

/*
 * ═══════════════════════════════════════════════════════════════
 * ORNAMENTAL DIVIDERS
 * ═══════════════════════════════════════════════════════════════
 */
.ornament {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2rem 0;
    opacity: 0.5;
}

.ornament svg {
    width: 100px;
    height: 12px;
    display: block;
    stroke: var(--contact-accent);
    fill: var(--gold);
    stroke-width: 1.5;
    filter: drop-shadow(0 0 4px var(--contact-glow));
}

/*
 * ═══════════════════════════════════════════════════════════════
 * PRIVACY & LEGAL SECTION
 * ═══════════════════════════════════════════════════════════════
 */
.privacy-section {
    border-color: var(--neon-emerald);
    border-width: 1px;
}

.privacy-section .section-title {
    color: var(--neon-emerald);
    text-shadow: 0 0 10px var(--emerald-glow);
}

.subsection-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--gold);
    margin: 2rem 0 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.subsection-title .icon {
    font-size: 1.1rem;
}

.content-section ul {
    margin: 1rem 0 1.5rem 1.5rem;
    line-height: 1.9;
}

.content-section li {
    margin-bottom: 0.5rem;
    color: var(--pearl);
}

.content-section li strong {
    color: var(--bone);
}

/* Highlight box for important notices */
.highlight-box {
    padding: 1.5rem;
    background: rgba(0, 255, 136, 0.05);
    border-left: 3px solid var(--neon-emerald);
    margin: 1.5rem 0;
    border-radius: 0 4px 4px 0;
}

.highlight-box p {
    margin-bottom: 1rem;
}

.highlight-box p:last-child {
    margin-bottom: 0;
}

/* Code/technical references */
.code-ref {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    background: var(--slate);
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    color: var(--neon-cyan);
}

/*
 * ═══════════════════════════════════════════════════════════════
 * FOOTER — Matches index_style.css + Newsletter
 * ═══════════════════════════════════════════════════════════════
 */
footer {
    padding: 4rem 2rem;
    border-top: 1px solid var(--ghost);
    position: relative;
    z-index: 1;
    background: var(--obsidian);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

/* Newsletter in footer */
.footer-newsletter {
    max-width: 500px;
    margin: 0 auto 3rem;
    text-align: center;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--ghost);
}

.footer-newsletter h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 0.75rem;
    text-shadow: 0 0 8px var(--gold-glow);
}

.footer-newsletter p {
    font-size: 0.8rem;
    color: var(--mist);
    margin-bottom: 1.25rem;
}

.newsletter-form {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-form input[type="email"] {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    padding: 0.75rem 1rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    background: var(--void);
    border: 1px solid var(--ghost);
    color: var(--light);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.newsletter-form input[type="email"]:focus {
    border-color: var(--gold);
    box-shadow: 0 0 15px var(--gold-glow);
}

.newsletter-form input[type="email"]::placeholder {
    color: var(--mist);
}

.newsletter-form button {
    padding: 0.75rem 1.5rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--gold), var(--neon-orange));
    color: var(--void);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover:not(:disabled) {
    box-shadow: 0 0 20px var(--gold-glow);
    transform: translateY(-1px);
}

.newsletter-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.newsletter-message {
    margin-top: 1rem;
    font-size: 0.8rem;
    padding: 0.5rem;
    border-radius: 3px;
    display: none;
}

.newsletter-message.visible {
    display: block;
}

.newsletter-message.success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--neon-emerald);
    color: var(--neon-emerald);
}

.newsletter-message.error {
    background: rgba(255, 105, 180, 0.1);
    border: 1px solid var(--neon-pink);
    color: var(--neon-pink);
}

.newsletter-note {
    font-size: 0.7rem;
    color: var(--mist);
    margin-top: 0.75rem;
}

/* Footer nav and copy */
.footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--mist);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--light);
}

.footer-copy {
    font-size: 0.7rem;
    color: var(--mist);
    letter-spacing: 0.05em;
}

/*
 * ═══════════════════════════════════════════════════════════════
 * ANIMATIONS
 * ═══════════════════════════════════════════════════════════════
 */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/*
 * ═══════════════════════════════════════════════════════════════
 * RESPONSIVE
 * ═══════════════════════════════════════════════════════════════
 */
@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .nav-links a {
        font-size: 0.65rem;
    }

    .contact-container {
        padding: 2rem 1.5rem 4rem;
    }

    .content-section {
        padding: 1.75rem;
    }

    .contact-method {
        flex-direction: column;
        text-align: center;
    }

    .footer-nav {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
        align-items: center;
    }

    .newsletter-form input[type="email"] {
        max-width: 100%;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/*
 * Secure messaging form
 */
.secure-contact-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.secure-contact-label {
    color: var(--bone);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.secure-contact-form textarea {
    width: 100%;
    background: var(--obsidian);
    color: var(--bone);
    border: 1px solid var(--ghost);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    font: inherit;
    font-size: 1rem;
    line-height: 1.5;
    resize: vertical;
    min-height: 8rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.secure-contact-form textarea:focus {
    outline: none;
    border-color: var(--contact-accent);
    box-shadow: 0 0 0 3px var(--contact-glow);
}

.secure-contact-form textarea[readonly] {
    opacity: 0.6;
    cursor: not-allowed;
}

.secure-contact-help {
    color: var(--mist);
    font-size: 0.85rem;
    line-height: 1.4;
}

.secure-contact-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    color: var(--pearl);
    font-size: 0.9rem;
    line-height: 1.4;
    cursor: pointer;
}

.secure-contact-checkbox input[type="checkbox"] {
    margin-top: 0.2rem;
    accent-color: var(--contact-accent);
}

.secure-contact-checkbox input[type="checkbox"]:disabled {
    cursor: not-allowed;
}

.secure-contact-checkbox input[type="checkbox"]:disabled + span {
    opacity: 0.55;
}

.secure-contact-submit {
    align-self: flex-start;
    background: var(--contact-accent);
    color: var(--void);
    border: none;
    border-radius: 4px;
    padding: 0.6rem 1.4rem;
    font: inherit;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.05s ease;
}

.secure-contact-submit:hover:not(:disabled) {
    background: var(--neon-cyan);
}

.secure-contact-submit:active:not(:disabled) {
    transform: translateY(1px);
}

.secure-contact-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.secure-contact-status {
    font-size: 0.9rem;
    min-height: 1.2em;
    color: var(--mist);
}

.secure-contact-status[data-kind="error"] {
    color: var(--neon-pink);
}

.secure-contact-status[data-kind="success"] {
    color: var(--neon-emerald);
}

.secure-contact-status[data-kind="info"] {
    color: var(--contact-accent);
}