:root {
    --bg-page: #050505;
    --text-main: #ffffff;
    --text-muted: #a1a1aa;
    --primary: #0ea5e9;
    --primary-glow: rgba(14, 165, 233, 0.4);
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(20, 20, 25, 0.6);
    --input-bg: rgba(0, 0, 0, 0.3);
    --input-bg-focus: rgba(0, 0, 0, 0.5);
    --input-text: #ffffff;
    --title-gradient-start: #ffffff;
    --title-gradient-end: #94a3b8;
    --info-card-bg: linear-gradient(90deg, rgba(255,255,255,0.03), transparent);
    --info-card-hover: rgba(255,255,255,0.05);
    --icon-secondary-bg: linear-gradient(135deg, #27272a, #18181b);
    --icon-secondary-color: #a1a1aa;
    --btn-bg: #ffffff;
    --btn-text: #000000;
    --btn-shadow: rgba(255, 255, 255, 0.2);
    --page-gradient: radial-gradient(circle at 0% 0%, rgba(14, 165, 233, 0.1) 0%, transparent 40%);
}

body.light-mode {
    --bg-page: #eef1f7;
    --text-main: #0f172a;
    --text-muted: #475569;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(15, 23, 42, 0.12);
    --card-bg: rgba(255, 255, 255, 0.85);
    --input-bg: rgba(15, 23, 42, 0.06);
    --input-bg-focus: rgba(15, 23, 42, 0.08);
    --input-text: #0f172a;
    --title-gradient-start: #0f172a;
    --title-gradient-end: #64748b;
    --info-card-bg: linear-gradient(90deg, rgba(15,23,42,0.03), transparent);
    --info-card-hover: rgba(15,23,42,0.05);
    --icon-secondary-bg: linear-gradient(135deg, #f8fafc, #e2e8f0);
    --icon-secondary-color: #475569;
    --btn-bg: #0f172a;
    --btn-text: #ffffff;
    --btn-shadow: rgba(15, 23, 42, 0.25);
    --page-gradient: radial-gradient(circle at 0% 0%, rgba(14, 165, 233, 0.08) 0%, transparent 45%);
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
    overflow-x: hidden;
}

.contact-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background-image: var(--page-gradient);
}

.contact-container {
    width: 100%;
    max-width: 1100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.info-header { margin-bottom: 40px; }

.badge-pill {
    background: rgba(14, 165, 233, 0.1);
    color: #38bdf8;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(14, 165, 233, 0.2);
    display: inline-block;
    margin-bottom: 16px;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin: 0 0 20px 0;
    background: linear-gradient(to right, var(--title-gradient-start), var(--title-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.main-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 90%;
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: 16px;
    background: var(--info-card-bg);
    border: 1px solid transparent;
    transition: 0.3s;
}

.info-card:hover {
    border-color: var(--glass-border);
    background: var(--info-card-hover);
}

.icon-box {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0284c7, #0369a1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 8px 16px rgba(2, 132, 199, 0.2);
}
.icon-box.secondary {
    background: var(--icon-secondary-bg);
    color: var(--icon-secondary-color);
    box-shadow: none;
    border: 1px solid var(--glass-border);
}

.card-details h3 {
    margin: 0 0 4px 0;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.copy-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    position: relative;
    color: var(--text-main);
    font-weight: 500;
    font-size: 1.1rem;
    transition: 0.2s;
}
.copy-wrapper:hover { color: var(--primary); }
.copy-tooltip {
    position: absolute;
    right: -70px;
    background: var(--primary);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: 0.3s;
}
.copy-wrapper.copied .copy-tooltip {
    opacity: 1;
    transform: translateX(0);
}

.topics-list h4 {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.topics-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}
.topics-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
}
.topics-list li i { color: var(--primary); }

.last-update {
    margin-top: 40px;
    font-size: 0.8rem;
    color: #52525b;
    font-family: monospace;
}

.form-wrapper {
    position: relative;
}

.contact-form {
    position: relative;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 2;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group { margin-bottom: 24px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}
.optional { font-size: 0.75rem; opacity: 0.7; }

.form-input {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 14px 16px;
    color: var(--input-text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: 0.3s;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--input-bg-focus);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

.select-wrapper { position: relative; }
.form-input[type="select"] { appearance: none; }
.select-arrow {
    position: absolute;
    right: 16px; top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
}

textarea.form-input { resize: vertical; min-height: 120px; }

.btn-submit {
    width: 100%;
    position: relative;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    overflow: hidden;
    transition: 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px var(--btn-shadow);
}

.btn-glow {
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    transform: skewX(-20deg);
    transition: 0s;
}
.btn-submit:hover .btn-glow {
    left: 200%;
    transition: 0.5s;
}

.blob {
    position: absolute;
    width: 300px; height: 300px;
    background: var(--primary);
    filter: blur(80px);
    opacity: 0.2;
    z-index: 1;
    border-radius: 50%;
}
.blob-1 { top: -50px; right: -50px; }
.blob-2 { bottom: -50px; left: -50px; background: #06b6d4; }

@media (max-width: 900px) {
    .contact-container { grid-template-columns: 1fr; gap: 40px; }
    h1 { font-size: 2.5rem; }
    .form-grid { grid-template-columns: 1fr; }
}

.contact-status {
    margin: 16px 0 8px;
    font-size: 0.9rem;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    min-height: 20px;
}

.contact-status.is-success {
    color: #22c55e;
    border-color: rgba(34, 197, 94, 0.35);
    background: rgba(34, 197, 94, 0.08);
}

.contact-status.is-error {
    color: #f87171;
    border-color: rgba(248, 113, 113, 0.35);
    background: rgba(248, 113, 113, 0.08);
}