:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --bg-color: #f8fafc;
    --success-color: #10b981;
    --glass-bg: rgba(255, 255, 255, 0.15);
    --card-bg: white;
    --card-shadow: rgba(0, 0, 0, 0.08);
    --intro-bg: white;
    --commitment-bg: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    --footer-bg: #1f2937;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #2563eb;
    --accent-color: #fbbf24;
    --text-color: #f1f5f9;
    --bg-color: #0f172a;
    --success-color: #34d399;
    --glass-bg: rgba(0, 0, 0, 0.3);
    --card-bg: #1e293b;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --intro-bg: #1e293b;
    --commitment-bg: linear-gradient(135deg, #422006 0%, #78350f 100%);
    --footer-bg: #020617;
}

/* Dark Mode Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 22px;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 4px 15px var(--card-shadow);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
}

.theme-toggle .fa-sun {
    display: none;
}

.theme-toggle .fa-moon {
    display: block;
}

[data-theme="dark"] .theme-toggle .fa-sun {
    display: block;
    color: #fbbf24;
}

[data-theme="dark"] .theme-toggle .fa-moon {
    display: none;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Hind Siliguri', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color), #8b5cf6);
    width: 0%;
    z-index: 9999;
    transition: width 0.1s ease;
}

/* Floating Navigation */
.floating-nav {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-btn.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.nav-btn.accent {
    background: linear-gradient(135deg, var(--accent-color), #f97316);
    color: white;
}

.nav-btn:hover {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.nav-btn.hidden {
    opacity: 0;
    transform: scale(0);
    pointer-events: none;
}

header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), #7c3aed);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: 80px 20px 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Particle Container */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Floating Shapes */
.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: floatShape 20s infinite ease-in-out;
}

.shape.circle {
    width: 100px;
    height: 100px;
    border: 3px solid white;
    border-radius: 50%;
}

.shape.square {
    width: 80px;
    height: 80px;
    border: 3px solid white;
    transform: rotate(45deg);
}

.shape.triangle {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 80px solid rgba(255, 255, 255, 0.2);
}

@keyframes floatShape {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-20px) rotate(90deg); }
    50% { transform: translateY(0) rotate(180deg); }
    75% { transform: translateY(20px) rotate(270deg); }
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,101.3C1248,85,1344,75,1392,69.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

header h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    animation: slideDown 1s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header p {
    font-size: 1.3rem;
    opacity: 0.95;
    position: relative;
    animation: slideUp 1s ease-out 0.3s both;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Candidate Profile Section */
.candidate-profile {
    background: var(--card-bg);
    max-width: 400px;
    margin: -80px auto 40px;
    padding: 40px 30px 30px;
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px var(--card-shadow), 0 10px 10px -5px var(--card-shadow);
    text-align: center;
    position: relative;
    z-index: 10;
    border-top: 5px solid var(--accent-color);
    animation: popIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) 0.5s both;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.candidate-profile:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 35px -5px rgba(0, 0, 0, 0.15);
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.profile-photo {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    margin: 0 auto 20px;
    border: 6px solid var(--primary-color);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
    object-fit: cover;
    background: linear-gradient(135deg, #e0e7ff, #dbeafe);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-color);
    overflow: hidden;
    position: relative;
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4), 0 10px 20px rgba(0,0,0,0.15);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 99, 235, 0), 0 10px 20px rgba(0,0,0,0.15);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0), 0 10px 20px rgba(0,0,0,0.15);
    }
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.profile-photo:hover img {
    transform: scale(1.1);
}

.candidate-name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Premium Ballot Badge */
.ballot-container {
    margin-top: 20px;
    perspective: 1000px;
}

.ballot-badge {
    position: relative;
    display: inline-block;
    padding: 20px 40px;
    border-radius: 20px;
    background: linear-gradient(135deg, #f59e0b 0%, #f97316 50%, #ea580c 100%);
    cursor: pointer;
    transform-style: preserve-3d;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 
        0 10px 30px rgba(245, 158, 11, 0.4),
        0 0 0 3px rgba(255, 255, 255, 0.2) inset,
        0 -3px 0 rgba(0, 0, 0, 0.1) inset;
    animation: ballotFloat 3s ease-in-out infinite;
}

.ballot-badge:hover {
    transform: translateY(-8px) rotateX(10deg) scale(1.05);
    box-shadow: 
        0 20px 40px rgba(245, 158, 11, 0.5),
        0 0 60px rgba(245, 158, 11, 0.3),
        0 0 0 3px rgba(255, 255, 255, 0.3) inset;
}

.ballot-badge:active {
    transform: translateY(-4px) scale(0.98);
}

@keyframes ballotFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.ballot-glow {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 25px;
    background: linear-gradient(135deg, #fbbf24, #f97316, #fbbf24);
    filter: blur(15px);
    opacity: 0.6;
    z-index: -1;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

.ballot-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    position: relative;
    z-index: 2;
}

.ballot-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.ballot-number {
    font-size: 4rem;
    font-weight: 800;
    color: white;
    text-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(255, 255, 255, 0.5);
    line-height: 1;
    animation: numberPulse 2s ease-in-out infinite;
}

@keyframes numberPulse {
    0%, 100% { transform: scale(1); text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 40px rgba(255, 255, 255, 0.5); }
    50% { transform: scale(1.05); text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3), 0 0 60px rgba(255, 255, 255, 0.8); }
}

.ballot-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    border-radius: 20px;
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

.ballot-particles span {
    position: absolute;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 3s infinite;
}

.ballot-particles span:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
.ballot-particles span:nth-child(2) { top: 20%; right: 10%; animation-delay: 0.5s; }
.ballot-particles span:nth-child(3) { bottom: 20%; left: 15%; animation-delay: 1s; }
.ballot-particles span:nth-child(4) { bottom: 10%; right: 15%; animation-delay: 1.5s; }

@keyframes particleFloat {
    0%, 100% { opacity: 0; transform: translateY(0) scale(0); }
    50% { opacity: 1; transform: translateY(-20px) scale(1); }
}

.ballot-hint {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.6;
    animation: hintBounce 2s infinite;
}

@keyframes hintBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

@keyframes celebrate {
    0% { transform: scale(1); }
    25% { transform: scale(1.15) rotate(-5deg); }
    50% { transform: scale(1.1) rotate(5deg); }
    75% { transform: scale(1.15) rotate(-3deg); }
    100% { transform: scale(1) rotate(0deg); }
}

/* Dark mode support for ballot */
[data-theme="dark"] .ballot-hint {
    color: #94a3b8;
}

.intro {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 6px -1px var(--card-shadow);
    margin-bottom: 50px;
    text-align: center;
    border-left: 5px solid var(--primary-color);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease, background-color 0.3s ease;
}

.intro.visible {
    opacity: 1;
    transform: translateY(0);
}

.intro p {
    font-size: 1.15rem;
    line-height: 1.8;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.section-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
    border-radius: 2px;
    transition: transform 0.6s ease 0.3s;
}

.section-title.visible::after {
    transform: translateX(-50%) scaleX(1);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border-bottom: 4px solid var(--primary-color);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55), background-color 0.3s ease;
    box-shadow: 0 2px 8px var(--card-shadow);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(50px);
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.card:hover::before {
    left: 100%;
}

.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(37, 99, 235, 0.03));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.2);
    border-bottom-color: var(--accent-color);
}

.card:hover::after {
    opacity: 1;
}

.card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.35rem;
    position: relative;
}

.card .number {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover .number {
    transform: rotate(360deg) scale(1.1);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.4);
}

.card p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-color);
    opacity: 0.8;
    position: relative;
}

/* Icon animations for cards */
.card-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 2.5rem;
    opacity: 0.1;
    transition: all 0.3s ease;
}

.card:hover .card-icon {
    opacity: 0.2;
    transform: scale(1.2) rotate(10deg);
}

.commitment {
    background: var(--commitment-bg);
    border: 3px solid var(--accent-color);
    padding: 50px;
    border-radius: 20px;
    margin-top: 60px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.2);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease, background 0.3s ease;
}

.commitment.visible {
    opacity: 1;
    transform: translateY(0);
}

.commitment::before {
    content: '⭐';
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3rem;
    background: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    animation: starPulse 2s infinite;
}

@keyframes starPulse {
    0%, 100% { transform: translateX(-50%) scale(1) rotate(0deg); }
    50% { transform: translateX(-50%) scale(1.1) rotate(10deg); }
}

.commitment h2 {
    color: #92400e;
    margin-bottom: 20px;
    font-size: 2rem;
}

.commitment p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #78350f;
}

.commitment strong {
    color: #92400e;
    font-weight: 700;
    background: rgba(251, 191, 36, 0.3);
    padding: 2px 8px;
    border-radius: 4px;
    animation: highlight 2s infinite;
}

@keyframes highlight {
    0%, 100% { background: rgba(251, 191, 36, 0.3); }
    50% { background: rgba(251, 191, 36, 0.5); }
}

.quote {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-top: 25px;
    font-style: italic;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px var(--card-shadow);
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

.quote::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 10px;
    font-size: 5rem;
    opacity: 0.1;
    color: var(--primary-color);
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-size: 1.2rem;
}

.social-link.facebook { background: #1877f2; }
.social-link.twitter { background: #1da1f2; }
.social-link.instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.social-link.linkedin { background: #0077b5; }

.social-link:hover {
    transform: translateY(-5px) scale(1.15);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

footer {
    text-align: center;
    padding: 50px 20px;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: 50px;
    border-top: 2px solid var(--card-shadow);
    position: relative;
    transition: all 0.3s ease;
}

footer p {
    font-size: 1.05rem;
}

.footer-wave {
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.footer-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 50px;
}

.footer-wave .shape-fill {
    fill: var(--bg-color);
    transition: fill 0.3s ease;
}

/* Counter Animation */
.counter-box {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.counter-item {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.counter-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.counter-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.counter-label {
    font-size: 1rem;
    color: #64748b;
}

/* Confetti */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    pointer-events: none;
    z-index: 9999;
    animation: confettiFall 3s linear forwards;
}

@keyframes confettiFall {
    0% {
        opacity: 1;
        transform: translateY(0) rotate(0deg);
    }
    100% {
        opacity: 0;
        transform: translateY(100vh) rotate(720deg);
    }
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.tooltip:hover::after {
    opacity: 1;
    bottom: calc(100% + 10px);
}

/* Contact Text */
.contact-text {
    margin-top: 25px;
    font-size: 1.1rem;
    color: #78350f;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 { font-size: 2rem; }
    header p { font-size: 1.1rem; }
    .candidate-profile { margin: -60px 20px 30px; }
    .candidate-name { font-size: 1.6rem; }
    .section-title { font-size: 1.6rem; }
    .grid { grid-template-columns: 1fr; gap: 20px; }
    .commitment { padding: 40px 25px; }
    .quote { font-size: 1.3rem; }
    .floating-nav { bottom: 20px; right: 20px; }
    .nav-btn { width: 45px; height: 45px; font-size: 1rem; }
    .counter-number { font-size: 2.5rem; }
}

@media (max-width: 480px) {
    header { padding: 60px 15px 100px; }
    header h1 { font-size: 1.7rem; }
    .profile-photo { width: 140px; height: 140px; }
    .intro { padding: 25px; }
    .card { padding: 25px; }
}

/* Loading Animation */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid #e2e8f0;
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loader-text {
    margin-top: 15px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* Ripple Animation */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-float::before {
    content: 'যোগাযোগ করুন';
    position: absolute;
    left: 70px;
    background: #1f2937;
    color: white;
    padding: 8px 15px;
    border-radius: 8px;
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    font-family: 'Hind Siliguri', sans-serif;
}

.whatsapp-float:hover::before {
    opacity: 1;
    visibility: visible;
}

@keyframes pulse-whatsapp {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7), 0 0 0 10px rgba(37, 211, 102, 0.1);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}