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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gold-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    --dark-bg: #0a0e27;
    --card-bg: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --border-color: rgba(255, 255, 255, 0.2);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.5);
}

[data-theme="light"] {
    --dark-bg: #f5f5f5;
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #2c3e50;
    --text-secondary: rgba(44, 62, 80, 0.7);
    --border-color: rgba(102, 126, 234, 0.3);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    border: 2px solid var(--border-color);
    color: white;
    font-size: 1.3rem;
    cursor: pointer;
    z-index: 10003;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease;
}

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

.theme-toggle:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .theme-toggle {
        top: 10px;
        right: 10px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

/* Yıldızlı arka plan animasyonu */
.stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* Hediye kutuları animasyonu (sadece light mode) */
.gifts-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
    display: none;
}

[data-theme="light"] .gifts-container {
    display: block;
}

[data-theme="light"] .stars-container {
    display: none;
}

.gift-box {
    position: absolute;
    pointer-events: none;
    transition: transform 0.3s ease-out;
}

.gift-box .box {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

.gift-box.small {
    width: 20px;
    height: 20px;
}

.gift-box.medium {
    width: 30px;
    height: 30px;
}

.gift-box.large {
    width: 40px;
    height: 40px;
}

/* Hediye kutusu tasarımı - CSS ile */
.gift-box .box::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 60%;
    top: 0;
    left: 0;
    border-radius: 4px 4px 0 0;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.gift-box .box::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 40%;
    bottom: 0;
    left: 0;
    border-radius: 0 0 4px 4px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-top: none;
}

/* Kırmızı hediye kutusu */
.gift-box.red .box::before,
.gift-box.red .box::after {
    background: linear-gradient(135deg, #ff4757 0%, #c44569 100%);
    box-shadow: 0 2px 8px rgba(255, 71, 87, 0.4);
}

.gift-box.red .ribbon {
    background: #ffd700;
}

/* Yeşil hediye kutusu */
.gift-box.green .box::before,
.gift-box.green .box::after {
    background: linear-gradient(135deg, #2ed573 0%, #1e8449 100%);
    box-shadow: 0 2px 8px rgba(46, 213, 115, 0.4);
}

.gift-box.green .ribbon {
    background: #ff6b9d;
}

/* Mavi hediye kutusu */
.gift-box.blue .box::before,
.gift-box.blue .box::after {
    background: linear-gradient(135deg, #3742fa 0%, #2f3542 100%);
    box-shadow: 0 2px 8px rgba(55, 66, 250, 0.4);
}

.gift-box.blue .ribbon {
    background: #ffa502;
}

/* Altın hediye kutusu */
.gift-box.gold .box::before,
.gift-box.gold .box::after {
    background: linear-gradient(135deg, #ffd700 0%, #ffa502 100%);
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.4);
}

.gift-box.gold .ribbon {
    background: #ff4757;
}

/* Kurdele */
.gift-box .ribbon {
    position: absolute;
    width: 25%;
    height: 100%;
    left: 37.5%;
    top: 0;
    background: #ffd700;
    border-radius: 2px;
    box-shadow: 0 0 6px rgba(255, 215, 0, 0.8), inset 0 0 2px rgba(255, 255, 255, 0.3);
    z-index: 1;
}

.gift-box .ribbon::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 25%;
    top: 37.5%;
    left: 0;
    background: inherit;
    border-radius: 2px;
    box-shadow: 0 0 4px rgba(255, 215, 0, 0.6);
}

/* Döndürme animasyonu */
@keyframes giftFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-5px) rotate(5deg);
    }
}

.gift-box {
    animation: giftFloat 3s ease-in-out infinite;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    pointer-events: none;
    transition: transform 0.3s ease-out;
}

.star.small {
    width: 2px;
    height: 2px;
    opacity: 0.8;
}

.star.medium {
    width: 3px;
    height: 3px;
    opacity: 0.6;
}

.star.large {
    width: 4px;
    height: 4px;
    opacity: 0.4;
}

@keyframes animateStars {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100vh); }
}

.container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.content-wrapper {
    width: 100%;
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

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

.header {
    text-align: center;
    margin-bottom: 40px;
}

.title {
    font-size: 3rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    text-shadow: 0 0 30px rgba(246, 211, 101, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { filter: brightness(1); }
    to { filter: brightness(1.2); }
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
}

.form-container {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.form-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow), var(--shadow-glow);
}

.resolution-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

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

.char-count {
    text-align: right;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Görsel CAPTCHA Stilleri */
.captcha-container {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 10px;
}

.captcha-image {
    flex: 1;
    max-width: 300px;
    width: auto;
    height: auto;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    object-fit: contain;
}

.captcha-image:hover {
    border-color: #667eea;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.refresh-captcha {
    padding: 12px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
}

.refresh-captcha:hover:not(:disabled) {
    transform: rotate(180deg);
}

.refresh-captcha:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.refresh-captcha i {
    display: block;
}

.submit-btn {
    padding: 18px 30px;
    background: var(--gold-gradient);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(246, 211, 101, 0.4);
    margin-top: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(246, 211, 101, 0.6);
}

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

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* KVKK Checkbox */
.kvkk-container {
    margin: 15px 0;
    transition: all 0.3s ease;
}

.kvkk-container.error {
    animation: shake 0.5s ease;
}

.kvkk-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 13px !important;
    line-height: 1.5;
    color: var(--text-primary);
    position: relative;
}

.kvkk-checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 22px;
    height: 22px;
    margin: 0;
    padding: 0;
    cursor: pointer;
    z-index: 2;
    left: 0;
    top: 2px;
}

.kvkk-checkbox .checkmark {
    width: 22px;
    height: 22px;
    min-width: 22px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.1);
    position: relative;
    transition: all 0.3s ease;
    margin-top: 2px;
    pointer-events: none;
    z-index: 1;
}

.kvkk-checkbox:hover .checkmark {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.kvkk-checkbox input[type="checkbox"]:checked + .checkmark {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
}

.kvkk-checkbox input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.kvkk-text {
    flex: 1;
}

.kvkk-link {
    color: #667eea;
    text-decoration: underline;
    font-weight: 600;
    transition: color 0.3s ease;
}

.kvkk-link:hover {
    color: #764ba2;
}

/* KVKK Modal */
/* Onay Dialog */
.confirm-dialog {
    display: none;
    position: fixed;
    z-index: 10001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

[data-theme="light"] .confirm-dialog {
    background-color: rgba(0, 0, 0, 0.4);
}

.confirm-dialog.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.confirm-dialog-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    border: 2px solid rgba(102, 126, 234, 0.3);
}

[data-theme="light"] .confirm-dialog-content {
    background: rgba(255, 255, 255, 0.98);
    border: 2px solid rgba(102, 126, 234, 0.4);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.confirm-dialog-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

[data-theme="light"] .confirm-dialog-header {
    border-bottom: 2px solid rgba(102, 126, 234, 0.3);
}

.confirm-dialog-header i {
    font-size: 2rem;
    color: #f6d365;
    animation: pulse 2s infinite;
}

.confirm-dialog-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.confirm-dialog-body {
    padding: 30px;
    color: var(--text-primary);
    line-height: 1.8;
    text-align: center;
}

[data-theme="light"] .confirm-dialog-body {
    color: var(--text-primary);
}

.confirm-dialog-body p {
    margin: 0;
    font-size: 1.1rem;
}

.confirm-dialog-footer {
    padding: 20px 30px;
    border-top: 2px solid rgba(102, 126, 234, 0.2);
    display: flex;
    justify-content: center;
    gap: 15px;
}

[data-theme="light"] .confirm-dialog-footer {
    border-top: 2px solid rgba(102, 126, 234, 0.3);
}

.confirm-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cancel-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

[data-theme="light"] .cancel-btn {
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
    border: 2px solid rgba(102, 126, 234, 0.3);
}

.cancel-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

[data-theme="light"] .cancel-btn:hover {
    background: rgba(102, 126, 234, 0.2);
}

.submit-btn-dialog {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.submit-btn-dialog:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Mobil görünüm için Onay Dialog */
@media (max-width: 768px) {
    .confirm-dialog-content {
        max-width: 95%;
    }
    
    .confirm-dialog-header {
        padding: 20px;
    }
    
    .confirm-dialog-header h2 {
        font-size: 1.2rem;
    }
    
    .confirm-dialog-body {
        padding: 20px;
        font-size: 0.9rem;
    }
    
    .confirm-dialog-body p {
        font-size: 1rem;
    }
    
    .confirm-dialog-footer {
        padding: 15px 20px;
        flex-direction: column;
    }
    
    .confirm-btn {
        width: 100%;
        justify-content: center;
    }
}

.kvkk-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

[data-theme="light"] .kvkk-modal {
    background-color: rgba(0, 0, 0, 0.4);
}

.kvkk-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.kvkk-modal-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    border: 2px solid rgba(102, 126, 234, 0.3);
}

[data-theme="light"] .kvkk-modal-content {
    background: rgba(255, 255, 255, 0.98);
    border: 2px solid rgba(102, 126, 234, 0.4);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.kvkk-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

[data-theme="light"] .kvkk-modal-header {
    border-bottom: 2px solid rgba(102, 126, 234, 0.3);
}

.kvkk-modal-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.kvkk-modal-close {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.kvkk-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

[data-theme="light"] .kvkk-modal-close:hover {
    background: rgba(102, 126, 234, 0.1);
}

.kvkk-modal-body {
    padding: 30px;
    overflow-y: auto;
    flex: 1;
    color: var(--text-primary);
    line-height: 1.8;
}

[data-theme="light"] .kvkk-modal-body {
    color: var(--text-primary);
}

.kvkk-modal-body h3 {
    color: #667eea;
    margin-top: 25px;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.kvkk-modal-body h3:first-child {
    margin-top: 0;
}

.kvkk-modal-body p {
    margin-bottom: 15px;
}

.kvkk-modal-body ul {
    margin: 15px 0;
    padding-left: 25px;
}

.kvkk-modal-body li {
    margin-bottom: 8px;
}

.kvkk-modal-body a {
    color: #667eea;
    text-decoration: underline;
}

.kvkk-modal-body a:hover {
    color: #764ba2;
}

.kvkk-note {
    margin-top: 25px;
    padding: 15px;
    background: rgba(102, 126, 234, 0.1);
    border-left: 4px solid #667eea;
    border-radius: 5px;
}

[data-theme="light"] .kvkk-note {
    background: rgba(102, 126, 234, 0.08);
}

.kvkk-modal-footer {
    padding: 20px 30px;
    border-top: 2px solid rgba(102, 126, 234, 0.2);
    display: flex;
    justify-content: flex-end;
}

[data-theme="light"] .kvkk-modal-footer {
    border-top: 2px solid rgba(102, 126, 234, 0.3);
}

.kvkk-modal-ok-btn {
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.kvkk-modal-ok-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

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

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

/* Mobil görünüm için KVKK modal */
@media (max-width: 768px) {
    .kvkk-modal-content {
        max-width: 95%;
        max-height: 95vh;
    }
    
    .kvkk-modal-header {
        padding: 20px;
    }
    
    .kvkk-modal-header h2 {
        font-size: 1.2rem;
    }
    
    .kvkk-modal-body {
        padding: 20px;
        font-size: 0.9rem;
    }
    
    .kvkk-modal-body h3 {
        font-size: 1.1rem;
    }
    
    .kvkk-modal-footer {
        padding: 15px 20px;
    }
}

.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    max-width: 400px;
    padding: 20px 25px;
    background: linear-gradient(135deg, rgba(245, 87, 108, 0.95) 0%, rgba(220, 38, 38, 0.95) 100%);
    border: 2px solid #f5576c;
    border-radius: 15px;
    color: #ffffff;
    display: none;
    z-index: 10002;
    box-shadow: 0 10px 30px rgba(245, 87, 108, 0.4);
    backdrop-filter: blur(10px);
    animation: slideInRight 0.4s ease-out;
}

.error-message.show {
    display: block;
    animation: slideInRight 0.4s ease-out, shake 0.5s ease 0.4s;
}

.error-message::before {
    content: '⚠️';
    margin-right: 10px;
    font-size: 1.2rem;
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Mobil görünüm için hata mesajı */
@media (max-width: 768px) {
    .error-message {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: calc(100% - 20px);
        padding: 15px 20px;
        font-size: 0.9rem;
    }
}

/* Animasyon Container */
.animation-container {
    width: 100%;
    max-width: 800px;
    text-align: center;
    animation: fadeIn 1s ease-out;
}

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

/* Kasa Animasyonu */
.vault-container {
    position: fixed;
    left: 50%;
    top: 40%;
    transform: translateX(-50%) translateY(-50%);
    z-index: 1001;
    width: 450px;
}

@keyframes lockAppear {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0) rotate(-180deg);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.2) rotate(10deg);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
    }
}

.vault {
    width: 450px;
    height: 400px;
    margin: 0 auto;
    position: relative;
    animation: vaultPulse 2s ease-in-out infinite;
}

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

.vault-door {
    width: 100%;
    height: 60%;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    border-radius: 20px 20px 0 0;
    position: relative;
    box-shadow: 
        inset 0 0 30px rgba(0, 0, 0, 0.5),
        0 10px 40px rgba(0, 0, 0, 0.4);
    border: 3px solid #1a252f;
}

[data-theme="light"] .vault-door {
    background: linear-gradient(135deg, #e0e0e0 0%, #c0c0c0 100%);
    border: 3px solid #a0a0a0;
    box-shadow: 
        inset 0 0 30px rgba(0, 0, 0, 0.1),
        0 10px 40px rgba(0, 0, 0, 0.2);
}

.vault-lock {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
}

.lock-circle {
    width: 80px;
    height: 80px;
    border: 8px solid #f6d365;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 
        0 0 20px rgba(246, 211, 101, 0.6),
        inset 0 0 20px rgba(246, 211, 101, 0.3);
    animation: lockGlow 2s ease-in-out infinite;
}

@keyframes lockGlow {
    0%, 100% { 
        box-shadow: 
            0 0 20px rgba(246, 211, 101, 0.6),
            inset 0 0 20px rgba(246, 211, 101, 0.3);
    }
    50% { 
        box-shadow: 
            0 0 40px rgba(246, 211, 101, 1),
            inset 0 0 30px rgba(246, 211, 101, 0.5);
    }
}

.lock-handle {
    width: 20px;
    height: 20px;
    background: #f6d365;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px rgba(246, 211, 101, 0.8);
}

.vault-handle {
    position: absolute;
    bottom: 20px;
    right: 30px;
    min-width: 60px;
    height: 15px;
    background: #1a252f;
    border-radius: 10px;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 8px;
    font-size: 0.5rem;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.5px;
    font-family: 'Courier New', monospace;
    text-transform: lowercase;
}

[data-theme="light"] .vault-handle {
    background: #a0a0a0;
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.2);
    color: rgba(0, 0, 0, 0.6);
}

.vault-base {
    width: 100%;
    height: 40%;
    background: linear-gradient(135deg, #1a252f 0%, #2c3e50 100%);
    border-radius: 0 0 20px 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    box-sizing: border-box;
}

[data-theme="light"] .vault-base {
    background: linear-gradient(135deg, #d0d0d0 0%, #b0b0b0 100%);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.sparkles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.sparkle {
    position: absolute;
    font-size: 2rem;
    animation: sparkleFloat 3s ease-in-out infinite;
}

.sparkle:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.sparkle:nth-child(2) {
    top: 20%;
    right: 15%;
    animation-delay: 0.5s;
}

.sparkle:nth-child(3) {
    bottom: 30%;
    left: 20%;
    animation-delay: 1s;
}

.sparkle:nth-child(4) {
    bottom: 20%;
    right: 10%;
    animation-delay: 1.5s;
}

.sparkle:nth-child(5) {
    top: 50%;
    left: 50%;
    animation-delay: 2s;
}

@keyframes sparkleFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }
}

/* Geri Sayım - Dijital Ekran */
.countdown-section {
    width: 100%;
    opacity: 1;
    z-index: 10;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #4ade80;
    border-radius: 10px;
    padding: 15px;
    box-shadow: 
        0 0 20px rgba(74, 222, 128, 0.5),
        inset 0 0 20px rgba(74, 222, 128, 0.1);
    display: block;
    box-sizing: border-box;
}

[data-theme="light"] .countdown-section {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid #22c55e;
    box-shadow: 
        0 0 20px rgba(34, 197, 94, 0.4),
        inset 0 0 20px rgba(34, 197, 94, 0.1);
}

.countdown-section .countdown {
    opacity: 0;
}

@keyframes countdownNumbersAppear {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.countdown-title {
    display: none;
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid #4ade80;
    border-radius: 5px;
    padding: 8px 12px;
    min-width: 60px;
    box-shadow: 
        0 0 10px rgba(74, 222, 128, 0.3),
        inset 0 0 10px rgba(74, 222, 128, 0.1);
    transition: transform 0.3s ease;
}

[data-theme="light"] .countdown-item {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #22c55e;
    box-shadow: 
        0 0 10px rgba(34, 197, 94, 0.3),
        inset 0 0 10px rgba(34, 197, 94, 0.1);
}

.countdown-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.countdown-number {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: #4ade80;
    font-family: 'Courier New', monospace;
    text-shadow: 0 0 10px rgba(74, 222, 128, 0.8);
    margin-bottom: 3px;
}

[data-theme="light"] .countdown-number {
    color: #16a34a;
    text-shadow: 0 0 10px rgba(22, 163, 74, 0.6);
}

.countdown-label {
    display: block;
    font-size: 0.65rem;
    color: rgba(74, 222, 128, 0.8);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Courier New', monospace;
}

[data-theme="light"] .countdown-label {
    color: rgba(22, 163, 74, 0.8);
}

.countdown-description {
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.8;
    text-align: center;
    padding: 30px 40px;
    max-width: 800px;
    width: 90%;
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border: 2px solid rgba(74, 222, 128, 0.3);
    border-radius: 20px;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(74, 222, 128, 0.1),
        inset 0 0 30px rgba(74, 222, 128, 0.05);
    position: fixed;
    left: 50% !important;
    top: calc(40% + 250px);
    transform: translateX(-50%) !important;
    z-index: 1000;
    overflow: hidden;
    box-sizing: border-box;
    margin: 0;
    right: auto;
}

.countdown-description::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #4ade80, transparent);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    z-index: 1002;
    /* background: rgba(10, 14, 39, 0.3); */
    backdrop-filter: blur(10px);
}

.footer a {
    color: #f6d365;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
}

.footer a:hover {
    color: #fda085;
    text-shadow: 0 0 10px rgba(246, 211, 101, 0.5);
}

/* Error Page */
.error-page {
    text-align: center;
    padding: 50px 20px;
}

.error-page h1 {
    font-size: 5rem;
    margin-bottom: 20px;
}

.error-page h2 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.back-btn {
    display: inline-block;
    padding: 15px 30px;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }

    .form-container {
        padding: 25px;
    }


    .vault-container {
        width: 320px;
        top: 35%;
    }

    .vault {
        width: 320px;
        height: 320px;
    }
    
    .vault-base {
        padding: 10px;
    }
    
    .countdown-section {
        padding: 10px;
    }
    
    .countdown-description {
        top: calc(35% + 200px);
        max-width: 90%;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }

    .countdown {
        gap: 4px;
        flex-wrap: nowrap;
    }

    .countdown-item {
        padding: 6px 8px;
        min-width: 45px;
        flex: 1;
    }

    .countdown-number {
        font-size: 1.1rem;
    }
    
    .countdown-label {
        font-size: 0.5rem;
    }

    .countdown-title {
        font-size: 1.2rem;
    }

    .countdown-description {
        font-size: 0.9rem;
        padding: 20px 25px;
        top: calc(35% + 200px);
        max-width: 90%;
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
}