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

:root {
    --primary-bg: #0a0a0a;
    --card-bg: #1a1a1a;
    --border-color: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-color: #00ff88;
    --accent-glow: rgba(0, 255, 136, 0.3);
    --button-bg: #2a2a2a;
    --button-hover: #3a3a3a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Animated grid background */
.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(42, 42, 42, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(42, 42, 42, 0.3) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    z-index: 0;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 500px;
    padding: 20px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    position: relative;
}

.logo-image {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 0 15px var(--accent-glow));
    animation: logoSlideLeft 1.5s ease-out forwards, logoFloat 3s ease-in-out 1.5s infinite;
    transform-origin: center;
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 8px;
    background: linear-gradient(90deg, var(--accent-color), #00ccff, var(--accent-color), #00ccff);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textSlideRight 1.5s ease-out forwards, gradientShift 3s ease-in-out 1.5s infinite, textGlow 3s ease-in-out 1.5s infinite;
    opacity: 0;
    transform: translateX(-50px);
}

/* Logo entrance animations */
@keyframes logoSlideLeft {
    0% {
        transform: translateX(40px) scale(1.3);
        filter: drop-shadow(0 0 30px var(--accent-glow));
    }
    100% {
        transform: translateX(0) scale(1);
        filter: drop-shadow(0 0 15px var(--accent-glow));
    }
}

@keyframes textSlideRight {
    0% {
        opacity: 0;
        transform: translateX(-80px) scale(0.8);
    }
    60% {
        opacity: 0;
        transform: translateX(-40px) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

/* Continuous animations after entrance */
@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        filter: drop-shadow(0 0 15px var(--accent-glow));
    }
    50% {
        transform: translateY(-5px) rotate(2deg);
        filter: drop-shadow(0 0 25px var(--accent-glow));
    }
}

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

@keyframes textGlow {
    0%, 100% {
        filter: drop-shadow(0 0 10px var(--accent-glow));
    }
    50% {
        filter: drop-shadow(0 0 20px var(--accent-glow));
    }
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 50%);
    opacity: 0.05;
    pointer-events: none;
}

.title {
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 40px;
    font-size: 15px;
}

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

.input-group label {
    display: block;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

#code-input {
    width: 100%;
    padding: 16px 20px;
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
}

#code-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

#code-input::placeholder {
    color: #4a4a4a;
    text-transform: none;
    letter-spacing: normal;
}

.unlock-btn {
    width: 100%;
    padding: 16px;
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}

.unlock-btn:hover {
    background: var(--button-hover);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.unlock-btn:active {
    transform: translateY(0);
}

.btn-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

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

.disclaimer {
    text-align: center;
    font-size: 13px;
    color: #666;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
    padding: max(20px, 3vw);
    overflow-y: auto;
}

.modal.show {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px 40px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    animation: slideUp 0.4s ease;
    position: relative;
    margin: auto;
}

/* Digital Card Styles */
.digital-card {
    background: #000000;
    border: clamp(2px, 0.5vw, 3px) solid var(--text-primary);
    border-radius: clamp(16px, 4vw, 24px);
    padding: clamp(16px, 4vw, 32px);
    width: calc(100vw - max(40px, 6vw));
    max-width: 360px;
    max-height: 85vh;
    overflow-y: auto;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 255, 136, 0.2);
}

.card-header {
    margin-bottom: 32px;
}

.card-logo {
    height: 50px;
    width: auto;
    margin-bottom: 16px;
}

.card-brand {
    font-size: clamp(20px, 5vw, 28px);
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.card-divider {
    width: 100%;
    height: 1px;
    background: var(--text-primary);
    margin: 16px 0;
}

.card-batch {
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--text-secondary);
    font-weight: 600;
}

.card-piece {
    margin: 32px 0;
}

.piece-label {
    font-size: 18px;
    letter-spacing: 3px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.piece-number {
    font-size: clamp(48px, 12vw, 72px);
    font-weight: 700;
    line-height: 1;
    margin: 16px 0;
    background: linear-gradient(135deg, var(--accent-color), #00ccff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.piece-count {
    font-size: 16px;
    color: var(--accent-color);
    letter-spacing: 1px;
    font-weight: 600;
}

.card-rewards {
    margin: 32px 0;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.rewards-title {
    font-size: clamp(14px, 3vw, 16px);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    line-height: 1.4;
}

.rewards-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.reward-item {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.reward-item:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--accent-color);
    transform: translateX(4px);
}

.reward-item.clickable::after {
    content: '→';
    font-size: 18px;
    color: var(--accent-color);
}

.reward-item.success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--accent-color);
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 24px;
    letter-spacing: 1px;
}

.close-card-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    line-height: 1;
}

.close-card-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: rotate(90deg);
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.reward-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.reward-icon.success {
    background: linear-gradient(135deg, #00ff88, #00ccff);
    box-shadow: 0 0 30px var(--accent-glow);
}

.reward-icon.fail {
    background: linear-gradient(135deg, #ff4444, #ff6b6b);
    box-shadow: 0 0 30px rgba(255, 68, 68, 0.3);
}

.reward-icon::before {
    content: '';
    font-size: 40px;
}

.reward-icon.success::before {
    content: '🎉';
}

.reward-icon.fail::before {
    content: '😔';
}

#reward-title {
    font-size: 28px;
    margin-bottom: 16px;
    font-weight: 600;
}

#reward-message {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 16px;
    line-height: 1.6;
}

#reward-code-display {
    background: var(--primary-bg);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    font-family: 'Courier New', monospace;
    font-size: 18px;
    letter-spacing: 2px;
    color: var(--accent-color);
    display: none;
}

#reward-code-display.show {
    display: block;
}

.modal-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.shop-btn {
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--accent-color), #00ccff);
    border: none;
    border-radius: 8px;
    color: #0a0a0a;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: none;
}

.shop-btn.show {
    display: block;
}

.shop-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.close-btn {
    padding: 12px 32px;
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--button-hover);
    border-color: var(--accent-color);
}

/* Responsive */
@media (max-width: 600px) {
    .card {
        padding: 32px 24px;
    }

    .title {
        font-size: 26px;
    }

    .logo {
        gap: 12px;
    }

    .logo-image {
        height: 40px;
    }

    .logo-text {
        font-size: 24px;
        letter-spacing: 6px;
    }

    .modal {
        padding: max(16px, 4vw);
    }

    .modal-content {
        padding: 32px 24px;
        width: 95%;
    }

    .digital-card {
        width: calc(100vw - max(32px, 8vw));
        max-width: 340px;
        max-height: 80vh;
    }

    .card-logo {
        height: 40px;
    }

    .card-header {
        margin-bottom: 24px;
    }

    .card-piece {
        margin: 24px 0;
    }

    .piece-label {
        font-size: 16px;
    }

    .modal-buttons {
        flex-direction: column;
    }

    .close-card-btn {
        width: 32px;
        height: 32px;
        font-size: 20px;
        top: 12px;
        right: 12px;
    }

    .reward-item {
        font-size: 13px;
        padding: 10px 14px;
    }
}

/* Extra small screens */
@media (max-width: 380px) {
    .modal {
        padding: max(12px, 5vw);
    }

    .digital-card {
        width: calc(100vw - max(24px, 10vw));
        max-width: 300px;
        max-height: 75vh;
    }

    .card-brand {
        letter-spacing: 2px;
    }

    .card-header {
        margin-bottom: 20px;
    }

    .card-piece {
        margin: 20px 0;
    }

    .card-rewards {
        padding: 20px 0;
    }

    .card-footer {
        font-size: 11px;
        flex-direction: column;
        gap: 8px;
    }

    .reward-item {
        font-size: 12px;
        padding: 8px 12px;
    }
}

/* Loading state */
.unlock-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.unlock-btn.loading .btn-text::after {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-left: 8px;
    border: 2px solid var(--text-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Error state */
#code-input.error {
    border-color: #ff4444;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

/* Card Action Icons */
.card-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.action-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-icon:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.action-icon:active {
    transform: translateY(0);
}

.action-icon svg {
    width: 24px;
    height: 24px;
}

/* Clipboard Notification */
.clipboard-notification {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--card-bg);
    border: 1px solid var(--accent-color);
    border-radius: 12px;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 20px var(--accent-glow);
    z-index: 10000;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
}

.clipboard-notification.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.clipboard-notification svg {
    color: var(--accent-color);
    flex-shrink: 0;
}

.clipboard-notification span {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

@keyframes notificationSlide {
    0% {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }
    10%, 90% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }
}

/* Email Dialog */
.email-dialog {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 10001;
    align-items: center;
    justify-content: center;
}

.email-dialog.show {
    display: flex;
}

.email-dialog-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    max-width: 400px;
    width: 90%;
    animation: slideUp 0.3s ease;
}

.email-dialog-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.email-dialog-content p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

#email-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

#email-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

#email-input::placeholder {
    color: #4a4a4a;
}

.email-dialog-buttons {
    display: flex;
    gap: 12px;
}

.email-btn {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.email-send {
    background: linear-gradient(135deg, var(--accent-color), #00ccff);
    color: #0a0a0a;
}

.email-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.email-cancel {
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.email-cancel:hover {
    background: var(--button-hover);
    border-color: var(--accent-color);
}