/* ==========================================================================
   DESIGN SYSTEM & CUSTOM PROPERTIES (Deep Water Tech Theme)
   ========================================================================== */
:root {
    /* Color Palette */
    --bg-deep-blue: #030816;
    --bg-grad-start: #040d21;
    --bg-grad-end: #020712;
    
    --color-aqua: #00f2fe;
    --color-royal-blue: #0072ff;
    --color-teal: #14f7b2;
    --color-glow-blue: rgba(0, 242, 254, 0.4);
    
    --text-primary: #ffffff;
    --text-secondary: #a3b8cc;
    --text-muted: #647d94;
    
    /* Font Pairings */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Glassmorphism Presets */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(0, 242, 254, 0.3);
    --glass-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    --glass-blur: blur(16px);
    
    /* System Transitions */
    --ease-smooth: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-speed: 0.3s;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-deep-blue);
    background-image: radial-gradient(circle at 50% 50%, var(--bg-grad-start) 0%, var(--bg-grad-end) 100%);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Canvas overlay for particle effect */
#bubble-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* ==========================================================================
   AESTHETIC DECORATIVE ELEMENTS (Orbs & Lights)
   ========================================================================== */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: 0;
    pointer-events: none;
    opacity: 0.45;
    mix-blend-mode: screen;
}

.orb-1 {
    top: -10%;
    left: 15%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--color-royal-blue) 0%, transparent 70%);
    animation: orbFloat 25s infinite alternate ease-in-out;
}

.orb-2 {
    bottom: -10%;
    right: 10%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--color-aqua) 0%, transparent 70%);
    animation: orbFloat 20s infinite alternate-reverse ease-in-out;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(5%, 8%) scale(1.1); }
    100% { transform: translate(-5%, -5%) scale(0.9); }
}

/* ==========================================================================
   CONTAINER & LAYOUT
   ========================================================================== */
.container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 950px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3.5rem;
}

.logo-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    margin-bottom: -1rem;
    transition: transform 0.4s var(--ease-smooth);
}

.logo-divider {
    width: 1px;
    height: 55px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.15) 20%, rgba(255, 255, 255, 0.15) 80%, transparent);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

.company-logo {
    max-width: 270px;
    height: auto;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.35)) drop-shadow(0 0 25px rgba(0, 242, 254, 0.05));
    transition: all 0.4s var(--ease-smooth);
}

.expo-logo {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.35)) drop-shadow(0 0 25px rgba(0, 242, 254, 0.05));
    transition: all 0.4s var(--ease-smooth);
}

.logo-wrapper:hover .company-logo {
    transform: translateY(-4px) scale(1.02);
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.45)) drop-shadow(0 0 40px rgba(0, 242, 254, 0.25));
}

.logo-wrapper:hover .expo-logo {
    transform: translateY(-4px) scale(1.02);
    filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.45)) drop-shadow(0 0 40px rgba(0, 242, 254, 0.25));
}

   STALL BADGE (Top Floating Element)
   ========================================================================== */
.stall-badge-wrapper {
    perspective: 1000px;
}

.stall-badge {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 0.85rem 1.75rem;
    border-radius: 50px;
    box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.4s var(--ease-smooth);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

/* Water drop reflection shine effect */
.stall-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1) 20%,
        rgba(255, 255, 255, 0.25) 60%,
        transparent
    );
    transform: skewX(-25deg);
    transition: none;
}

.stall-badge:hover::before {
    left: 150%;
    transition: left 0.8s ease-in-out;
}

.stall-badge:hover {
    border-color: var(--glass-border-hover);
    box-shadow: 0 15px 30px rgba(0, 242, 254, 0.15), var(--glass-shadow);
    transform: translateY(-4px) scale(1.02);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-teal);
    border-radius: 50%;
    position: relative;
    box-shadow: 0 0 10px var(--color-teal);
}

.pulse-dot::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px solid var(--color-teal);
    border-radius: 50%;
    animation: dotPulse 2s infinite ease-out;
}

@keyframes dotPulse {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(2.2); opacity: 0; }
}

.badge-icon {
    color: var(--color-aqua);
    font-size: 1.1rem;
    text-shadow: 0 0 8px var(--color-glow-blue);
}

.badge-text {
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.badge-text strong {
    color: var(--color-aqua);
    font-weight: 700;
}

/* ==========================================================================
   COUNTDOWN TIMER DISPLAY
   ========================================================================== */
.countdown-heading {
    margin-bottom: -2.5rem;
}

.countdown-label {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.85rem;
    letter-spacing: 5px;
    color: var(--text-muted);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    position: relative;
    display: inline-block;
}

.countdown-label::before,
.countdown-label::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 25px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--text-muted));
}

.countdown-label::before {
    right: 105%;
}

.countdown-label::after {
    left: 105%;
    transform: rotate(180deg);
}

.countdown-container {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    width: 100%;
    max-width: 800px;
    flex-wrap: wrap;
}

.countdown-card {
    flex: 1;
    min-width: 150px;
    max-width: 180px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-number-wrapper {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    height: 140px;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glass-shadow);
    transition: all 0.4s var(--ease-smooth);
}

.card-number {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #ffffff 30%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 10px rgba(0,0,0,0.25);
    line-height: 1;
}

/* Card Glow Effect on Hover */
.card-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, var(--color-glow-blue) 0%, transparent 60%);
    transform: translate(-50%, -50%) scale(0.6);
    opacity: 0;
    z-index: 1;
    transition: all 0.4s var(--ease-smooth);
    pointer-events: none;
}

.countdown-card:hover .card-number-wrapper {
    transform: translateY(-8px) scale(1.03);
    border-color: var(--glass-border-hover);
    box-shadow: 0 25px 40px rgba(0, 242, 254, 0.12), var(--glass-shadow);
}

.countdown-card:hover .card-glow {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.countdown-card:hover .card-number {
    background: linear-gradient(135deg, #ffffff 40%, var(--color-aqua) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.card-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.countdown-card:hover .card-label {
    color: var(--color-aqua);
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

/* ==========================================================================
   EXPO DETAILS SECTION
   ========================================================================== */
.expo-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
}

.expo-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 3rem;
    line-height: 1.15;
    letter-spacing: -0.5px;
    max-width: 750px;
    color: var(--text-primary);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.highlight-city {
    display: block;
    font-size: 2.25rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-aqua) 0%, var(--color-royal-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 0.5rem;
    filter: drop-shadow(0 2px 5px rgba(0, 242, 254, 0.25));
}

.expo-location {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.5rem 1.25rem;
    border-radius: 30px;
    transition: all 0.3s var(--ease-smooth);
}

.location-icon-box {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-aqua);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.15);
}

.location-text {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-secondary);
    letter-spacing: 0.2px;
}

.expo-location:hover .location-icon-box {
    background: var(--color-aqua);
    color: var(--bg-deep-blue);
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 0 25px var(--color-aqua);
}

.expo-location:hover .location-text {
    color: var(--text-primary);
}

/* ==========================================================================
   BUTTONS & ACTIONS
   ========================================================================== */
.action-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    width: 100%;
}

.btn {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    padding: 0.9rem 1.8rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.4s var(--ease-smooth);
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-aqua) 0%, var(--color-royal-blue) 100%);
    color: var(--bg-deep-blue);
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(0, 114, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 242, 254, 0.5);
    background: linear-gradient(135deg, #00f2fe 30%, #00d2ff 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 242, 254, 0.3);
    color: var(--color-aqua);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.btn-glass {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.03);
    border-color: var(--glass-border);
    color: var(--text-primary);
    transform: translateY(-4px);
}

.btn-register {
    background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-aqua) 100%);
    color: var(--bg-deep-blue);
    font-weight: 800;
    box-shadow: 0 10px 30px rgba(20, 247, 178, 0.4);
    position: relative;
}

.btn-register:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 15px 35px rgba(20, 247, 178, 0.6);
    background: linear-gradient(135deg, #2bf8be 0%, #3bf4ff 100%);
}

.btn-register.pulse-glow::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 14px;
    border: 2px solid var(--color-teal);
    animation: btnPulse 2s infinite ease-out;
    pointer-events: none;
}

@keyframes btnPulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.08, 1.25); opacity: 0; }
}

.btn i {
    font-size: 1.05rem;
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: scale(1.15);
}

/* ==========================================================================
   WAVE BACKGROUND SCENE
   ========================================================================== */
.wave-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 12vh;
    min-height: 80px;
    max-height: 150px;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}

.waves {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Parallax Wave Animation */
.parallax > use {
    animation: move-forever 25s cubic-bezier(.55,.5,.45,.5) infinite;
}
.parallax > use:nth-child(1) {
    animation-delay: -2s;
    animation-duration: 7s;
}
.parallax > use:nth-child(2) {
    animation-delay: -3s;
    animation-duration: 10s;
}
.parallax > use:nth-child(3) {
    animation-delay: -4s;
    animation-duration: 13s;
}
.parallax > use:nth-child(4) {
    animation-delay: -5s;
    animation-duration: 20s;
}

@keyframes move-forever {
    0% {
        transform: translate3d(-90px,0,0);
    }
    100% {
        transform: translate3d(85px,0,0);
    }
}

/* ==========================================================================
   TOAST NOTIFICATION (Clipboard Feedback)
   ========================================================================== */
.toast-notification {
    position: fixed;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-notification.show {
    bottom: 40px;
}

.toast-content {
    background: rgba(4, 20, 48, 0.85);
    border: 1px solid var(--color-teal);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 0.9rem 1.8rem;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(20, 247, 178, 0.15), var(--glass-shadow);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast-icon {
    color: var(--color-teal);
    font-size: 1.15rem;
}

#toast-message {
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.2px;
}

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */
.animate-fade-in-down {
    animation: fadeInDown 1s var(--ease-smooth) forwards;
}

.animate-fade-in {
    animation: fadeIn 1s var(--ease-smooth) forwards;
}

.animate-scale-up {
    animation: scaleUp 1s var(--ease-smooth) forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 1s var(--ease-smooth) forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.animate-bounce {
    animation: subtleBounce 2s infinite ease-in-out;
}

@keyframes fadeInDown {
    0% { opacity: 0; transform: translateY(-20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes scaleUp {
    0% { opacity: 0; transform: scale(0.92); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes subtleBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
        gap: 2.25rem;
    }
    
    .logo-wrapper {
        flex-direction: column;
        gap: 1.25rem;
        margin-bottom: 0;
    }
    
    .logo-divider {
        display: none;
    }
    
    .company-logo {
        max-width: 220px;
    }
    
    .expo-logo {
        max-width: 170px;
    }
    
    .stall-badge {
        padding: 0.65rem 1.25rem;
    }
    
    .badge-text {
        font-size: 0.85rem;
    }
    
    .countdown-heading {
        margin-bottom: -1.75rem;
    }
    
    .countdown-label {
        font-size: 0.75rem;
        letter-spacing: 3px;
    }
    
    .countdown-container {
        gap: 0.85rem;
    }
    
    .countdown-card {
        min-width: 100px;
        max-width: 130px;
        flex: 1 1 40%;
    }
    
    .card-number-wrapper {
        height: 100px;
        border-radius: 14px;
    }
    
    .card-number {
        font-size: 3rem;
    }
    
    .card-label {
        font-size: 0.75rem;
        letter-spacing: 1.5px;
    }
    
    .expo-title {
        font-size: 2rem;
    }
    
    .highlight-city {
        font-size: 1.6rem;
    }
    
    .location-text {
        font-size: 1rem;
    }
    
    .action-buttons {
        gap: 0.85rem;
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        max-width: 320px;
        padding: 0.8rem 1.5rem;
    }
}

@media (max-width: 380px) {
    .countdown-card {
        min-width: 60px;
        flex: 1 1 45%;
    }
    
    .card-number-wrapper {
        height: 80px;
    }
    
    .card-number {
        font-size: 2.2rem;
    }
}