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

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #ff9cba;
    --accent-color: #ffc2d1;
    --green-primary: #2d9d78;
    --green-light: #52b788;
    --green-pale: #d8f3dc;
    --dark-text: #3d2645;
    --light-bg: #f0fdf4;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Navigation Bar */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--green-primary));
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link.active {
    border-bottom-color: var(--white);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), 
                url('banner.jpg') center/cover;
    border-radius: 15px;
    margin-bottom: 40px;
    position: relative;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.hero h1 {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 1.3rem;
    color: var(--white);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

/* Welcome Section */
.welcome-section {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(45, 157, 120, 0.15);
    border-top: 5px solid var(--green-primary);
}

.welcome-content h2 {
    background: linear-gradient(135deg, var(--primary-color), var(--green-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    font-size: 2rem;
}

.welcome-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-text);
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.feature-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    border-left: 5px solid var(--green-primary);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(45, 157, 120, 0.35);
}

.feature-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.05);
}

.feature-card h3 {
    color: var(--primary-color);
    padding: 20px 20px 10px;
    font-size: 1.5rem;
}

.feature-card p {
    padding: 0 20px;
    color: var(--dark-text);
    flex-grow: 1;
}

.feature-card .btn {
    margin: 20px;
    align-self: flex-start;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--green-primary));
    color: var(--white);
    text-decoration: none;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
}

.btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(45, 157, 120, 0.4);
}

/* Love Letter Styles */
.love-letter-section {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(45, 157, 120, 0.15);
    border-top: 5px solid var(--green-primary);
}

.love-letter-section h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 30px;
    font-size: 2.5rem;
}

.letter {
    background: linear-gradient(135deg, rgba(255, 255, 255, 1), rgba(216, 243, 220, 1));
    padding: 40px;
    border-radius: 10px;
    border-left: 5px solid var(--green-primary);
    margin-bottom: 30px;
    line-height: 2;
}

.letter-greeting {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-style: italic;
}

.letter p {
    margin-bottom: 20px;
    text-align: justify;
    color: var(--dark-text);
}

.letter-closing {
    text-align: right;
    margin-top: 30px;
    font-size: 1.1rem;
}

.signature {
    font-style: italic;
    color: var(--primary-color);
}

.letter-actions {
    text-align: center;
}

/* Quiz Styles */
.quiz-section {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(45, 157, 120, 0.15);
    border-top: 5px solid var(--green-primary);
}

.quiz-section h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.quiz-subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.quiz-container {
    max-width: 600px;
    margin: 0 auto;
}

.quiz-question {
    background: linear-gradient(135deg, rgba(255, 245, 247, 1), rgba(216, 243, 220, 1));
    padding: 30px;
    border-radius: 10px;
    border: 2px solid var(--green-light);
}

.quiz-question h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.quiz-question p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--dark-text);
}

.options {
    margin-bottom: 30px;
}

.option {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.option:hover {
    background-color: var(--green-pale);
}

.option input[type="radio"] {
    margin-right: 10px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.option span {
    font-size: 1rem;
    color: var(--dark-text);
}

/* Quiz Interlude Styles */
.quiz-interlude {
    text-align: center;
    padding: 40px;
    border-radius: 10px;
}

.interlude-result {
    padding: 40px;
    border-radius: 15px;
    margin-bottom: 30px;
    animation: slideIn 0.5s ease-out;
}

.interlude-result.correct {
    background: linear-gradient(135deg, rgba(45, 157, 120, 0.15), rgba(82, 183, 136, 0.15));
    border: 3px solid var(--green-primary);
}

.interlude-result.incorrect {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.15), rgba(255, 156, 186, 0.15));
    border: 3px solid var(--primary-color);
}

.interlude-result h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: bold;
}

.interlude-result.correct h2 {
    color: var(--green-primary);
}

.interlude-result.incorrect h2 {
    color: var(--primary-color);
}

.interlude-message {
    font-size: 1.2rem;
    color: var(--dark-text);
    line-height: 1.6;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-result {
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1), rgba(45, 157, 120, 0.1));
    padding: 40px;
    border-radius: 15px;
    margin: 20px 0;
}

.quiz-result h2 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.quiz-result p {
    font-size: 1.2rem;
    color: var(--dark-text);
    margin-bottom: 30px;
}

.quiz-result .btn {
    margin: 10px;
}

/* Survey Styles */
.survey-section {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(45, 157, 120, 0.15);
    border-top: 5px solid var(--green-primary);
}

.survey-section h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.survey-subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.survey-form {
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    color: var(--primary-color);
    font-weight: 600;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea,
.form-group input[type="range"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--green-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--dark-text);
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green-primary);
    box-shadow: 0 0 5px rgba(45, 157, 120, 0.3);
}

.form-group textarea {
    resize: vertical;
}

/* Range Slider Styling */
.form-group input[type="range"] {
    padding: 0;
    height: 8px;
    border: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: var(--green-pale);
    border-radius: 5px;
}

/* Webkit browsers (Chrome, Safari, Edge) */
.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(255, 107, 157, 0.4);
    transition: all 0.3s ease;
}

.form-group input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.6);
}

/* Firefox */
.form-group input[type="range"]::-moz-range-thumb {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(255, 107, 157, 0.4);
    transition: all 0.3s ease;
}

.form-group input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.6);
}

.form-group input[type="range"]::-moz-range-track {
    background: transparent;
    border: none;
}

.checkbox-group,
.radio-group {
    margin-top: 15px;
}

.checkbox-group label,
.radio-group label {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"],
.radio-group input[type="radio"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.survey-message {
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1), rgba(45, 157, 120, 0.1));
    padding: 40px;
    border-radius: 15px;
}

.survey-message h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 20px;
}

/* Gallery Styles */
.gallery-section {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(45, 157, 120, 0.15);
    border-top: 5px solid var(--green-primary);
}

.gallery-section h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.gallery-subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.slideshow-container {
    max-width: 800px;
    position: relative;
    margin: 0 auto 30px;
    background-color: var(--light-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.slide {
    display: none;
    text-align: center;
    position: relative;
}

.slide.active,
.slide.fade.active {
    display: block;
}

.slide img {
    width: 100%;
    height: auto;
    max-height: 600px;
    object-fit: cover;
}

.slide-caption {
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--green-primary));
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
}

/* Slideshow navigation */
.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    margin-top: -22px;
    padding: 16px;
    color: var(--white);
    font-weight: bold;
    font-size: 18px;
    transition: 0.3s ease;
    border-radius: 3px;
    background-color: rgba(0, 0, 0, 0.5);
    user-select: none;
}

.next {
    right: 0;
}

.prev {
    left: 0;
}

.prev:hover, .next:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

/* Dots/indicators */
.dots-container {
    text-align: center;
    padding: 20px;
    background-color: var(--light-bg);
}

.dot {
    cursor: pointer;
    height: 15px;
    width: 15px;
    margin: 0 5px;
    background-color: var(--green-light);
    border-radius: 50%;
    display: inline-block;
    transition: background-color 0.3s ease;
}

.dot.active {
    background-color: var(--primary-color);
}

/* Gallery controls */
.gallery-controls {
    text-align: center;
    margin-bottom: 30px;
}

.gallery-controls .btn {
    margin: 0 10px;
}

/* Upload controls */
.upload-controls {
    max-width: 800px;
    margin: 0 auto 30px;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.upload-controls input[type="file"] {
    border-radius: 8px;
    padding: 6px;
}

.upload-controls input[type="text"] {
    padding: 10px;
    border: 2px solid var(--green-light);
    border-radius: 8px;
    min-width: 220px;
}

.upload-label {
    width: 100%;
    text-align: center;
    color: var(--dark-text);
    font-weight: 600;
    margin-bottom: 6px;
}

.gallery-info {
    text-align: center;
    color: var(--dark-text);
    font-size: 0.95rem;
    line-height: 1.8;
    background-color: var(--green-pale);
    padding: 20px;
    border-radius: 10px;
    border-left: 5px solid var(--green-primary);
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--green-primary));
    color: var(--white);
    margin-top: 60px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-link {
        padding: 0.5rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .love-letter-section {
        padding: 20px;
    }

    .letter {
        padding: 20px;
        line-height: 1.6;
    }

    .quiz-question {
        padding: 20px;
    }

    .survey-form {
        max-width: 100%;
    }

    .slideshow-container {
        max-width: 100%;
    }
}

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

.fade {
    animation: fadeIn 0.5s ease-in-out;
}