/* General Body & Typography */
body {
    font-family: 'Quicksand', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to right, #f8e1df, #f2c7c5);
    color: #4A4A4A;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    color: #C0392B;
    text-align: center;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.8em;
    padding: 20px 0;
}

h2 {
    font-size: 2.2em;
    margin-top: 0;
}

h3 {
    font-size: 1.8em;
    color: #6C5B7B;
    margin-top: 20px;
}

/* Header & Navigation */
header {
    background-color: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.08);
    text-align: center;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo {
    height: 50px;
    width: auto;
    border-radius: 50%;
}

nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.nav-tab {
    background-color: #F8D8D8;
    color: #A0522D;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.nav-tab:hover {
    background-color: #F0B0B0;
    transform: translateY(-2px);
}

.nav-tab.active {
    background-color: #C0392B;
    color: #fff;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Main Content Area */
main {
    flex-grow: 1;
    padding: 20px;
    max-width: 900px;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.tab-content {
    display: none;
    padding: 20px;
}

.tab-content.active {
    display: block;
}

/* Input Group Styling */
.input-group {
    margin-bottom: 18px;
}

.input-group label {
    display: block;
    margin-bottom: 7px;
    font-weight: 500;
    color: #C0392B;
    font-size: 1.05em;
}

.input-group input[type="text"],
.input-group input[type="date"],
.input-group select {
    width: calc(100% - 24px);
    padding: 12px;
    border: 1px solid #D7B0B0;
    border-radius: 8px;
    font-size: 1.1em;
    box-sizing: border-box;
    font-family: 'Quicksand', sans-serif;
    color: #4A4A4A;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.input-group input[type="text"]:focus,
.input-group input[type="date"]:focus,
.input-group select:focus {
    border-color: #C0392B;
    box-shadow: 0 0 8px rgba(192, 57, 43, 0.3);
    outline: none;
}

.input-group input[type="text"]::placeholder {
    color: #B0B0B0;
    font-style: italic;
    font-weight: 300;
}

/* Button Styling */
button#checkCompatibility,
button#revealMessage,
button#checkZodiac,
button#generateTimeline {
    background-color: #6C5B7B;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1.2em;
    font-weight: 600;
    margin-top: 20px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: block;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.5px;
}

button#checkCompatibility:hover,
button#revealMessage:hover,
button#checkZodiac:hover,
button#generateTimeline:hover {
    background-color: #554865;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

/* Result Display */
.result {
    margin-top: 30px;
    padding: 20px;
    background-color: #FDF4E3;
    border-radius: 12px;
    text-align: center;
    font-size: 1.6em;
    font-weight: 600;
    color: #4A4A4A;
    animation: fadeIn 1s ease-out;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Specific result colors */
.result.positive { color: #27AE60; }
.result.good { color: #2980B9; }
.result.neutral { color: #E67E22; }
.result.negative { color: #C0392B; }
.result.loading { color: #6C5B7B; }
.result.error { color: #C0392B; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Quote and Tips Styling */
.quote-container p {
    font-style: italic;
    margin-bottom: 15px;
    padding: 10px;
    border-left: 5px solid #C0392B;
    background-color: #F8F8F8;
    border-radius: 5px;
    font-size: 1.05em;
    line-height: 1.8;
}

ul {
    list-style-type: none;
    padding-left: 0;
}

li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 25px;
    color: #555;
}

li::before {
    content: '❤️';
    position: absolute;
    left: 0;
    color: #C0392B;
    font-size: 0.9em;
    top: 2px;
}

/* Footer */
footer {
    text-align: center;
    padding: 25px;
    margin-top: 40px;
    background-color: #fff;
    color: #888;
    font-size: 0.9em;
    box-shadow: 0 -2px 5px rgba(0,0,0,0.05);
}

.social-links a {
    color: #6C5B7B;
    text-decoration: none;
    margin: 0 8px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #C0392B;
}

/* Heart Rain Effect */
.heart-rain-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.heart {
    position: absolute;
    color: #C0392B;
    font-size: 2em;
    opacity: 0;
    animation: fall linear forwards;
    transform: translateY(0);
    filter: drop-shadow(0 0 5px rgba(192, 57, 43, 0.5));
}

@keyframes fall {
    0% {
        opacity: 0;
        transform: translateY(-20px) scale(0.5);
    }
    10% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(100%) scale(0.8);
    }
}

/* Zodiac Compatibility Section */
.zodiac-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.zodiac-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.zodiac-result {
    margin-top: 20px;
}

#zodiacChart {
    max-width: 100%;
    margin: 20px auto;
}

.zodiac-sign-info {
    background-color: #F8F8F8;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.zodiac-sign-info h3 {
    color: #6C5B7B;
    margin-top: 0;
    text-align: left;
}

.zodiac-sign-info p {
    margin: 5px 0;
}

.zodiac-compatibility-tips {
    background-color: #FDF4E3;
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
}

/* Timeline Section */
.timeline-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.timeline-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.timeline-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.timeline-stat {
    background-color: #F8F8F8;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.timeline-stat h3 {
    font-size: 2em;
    color: #C0392B;
    margin: 0;
}

.timeline-stat p {
    margin: 5px 0 0;
    color: #555;
}

.timeline-milestones ul {
    list-style-type: none;
    padding-left: 0;
}

.timeline-milestones li {
    padding: 10px;
    border-bottom: 1px solid #eee;
    margin-bottom: 0;
}

/* Challenges Section */
.challenges-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.challenge-card {
    background-color: #F8F8F8;
    padding: 20px;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.challenge-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.challenge-card h3 {
    color: #6C5B7B;
    margin-top: 0;
    text-align: left;
}

.challenge-card p {
    color: #555;
    margin-bottom: 0;
}

.challenge-quiz, .challenge-7days, .challenge-album {
    background-color: #FDF4E3;
    padding: 20px;
    border-radius: 10px;
}

.quiz-question {
    margin-bottom: 15px;
}

.quiz-question input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #D7B0B0;
    border-radius: 5px;
}

.days-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.day-card {
    background-color: #F8F8F8;
    padding: 15px;
    border-radius: 8px;
}

.day-card h4 {
    color: #C0392B;
    margin-top: 0;
}

.day-card button.complete-day {
    background-color: #6C5B7B;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 15px;
    cursor: pointer;
    font-size: 0.9em;
}

.upload-area {
    margin-bottom: 20px;
}

.upload-area label {
    display: inline-block;
    background-color: #6C5B7B;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.upload-area label:hover {
    background-color: #554865;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
}

.photo-grid img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.2em;
    }

    h2 {
        font-size: 1.8em;
    }

    .logo-container {
        flex-direction: column;
        gap: 5px;
    }

    .logo {
        height: 40px;
    }

    nav {
        flex-direction: column;
        align-items: center;
    }

    .nav-tab {
        width: 80%;
        margin-bottom: 10px;
    }

    main {
        margin: 15px;
        padding: 15px;
    }

    .input-group input[type="text"],
    .input-group input[type="date"],
    .input-group select,
    button#checkCompatibility,
    button#revealMessage,
    button#checkZodiac,
    button#generateTimeline {
        width: 100%;
        box-sizing: border-box;
    }

    .result {
        font-size: 1.2em;
    }

    .zodiac-inputs,
    .timeline-inputs {
        grid-template-columns: 1fr;
    }

    .timeline-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.5em;
    }

    .nav-tab {
        font-size: 1em;
        padding: 8px 15px;
    }

    main {
        padding: 10px;
    }
}