/* ===================================
   Fedidating - Modern Dating App Styles
   Mobile-First, Responsive Design
   =================================== */

/* CSS Variables */
:root {
    /* Colors - Modern Dating Theme */
    --primary: #E91E63;
    --primary-dark: #C2185B;
    --primary-light: #F48FB1;
    --secondary: #9C27B0;
    --secondary-dark: #7B1FA2;
    --accent: #FF4081;

    /* Neutrals */
    --bg-primary: #FAFAFA;
    --bg-secondary: #FFFFFF;
    --bg-dark: #1A1A1A;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #FFFFFF;
    --border: #E0E0E0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #E91E63 0%, #9C27B0 100%);
    --gradient-card: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.7) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-screen p {
    color: white;
    margin-top: var(--spacing-md);
    font-weight: 500;
}

/* App Container */
.app-container {
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    background: var(--bg-secondary);
    box-shadow: var(--shadow-lg);
    position: relative;
}

/* Views */
.view {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: opacity var(--transition-base);
}

.view.hidden {
    display: none;
}

/* Auth Container */
.auth-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.tagline {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
}

.auth-form {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.auth-form h2 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: var(--font-size-xl);
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.form-switch {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.form-switch a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* Auth Separator */
.auth-separator {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.auth-separator::before,
.auth-separator::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border);
}

.auth-separator span {
    padding: 0 var(--spacing-sm);
    font-weight: 500;
}

/* Fediverse Login */
.fediverse-login {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
}

.fediverse-login h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.fediverse-hint {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.btn-fediverse {
    background: linear-gradient(135deg, #6364FF 0%, #563ACC 100%);
    color: white;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-fediverse:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.fediverse-icon {
    font-size: 1.2rem;
}

/* Buttons */
.btn {
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-icon {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.btn-icon:hover {
    transform: scale(1.1);
}

/* Profile Container */
.profile-container {
    padding: var(--spacing-lg);
    padding-bottom: 80px;
}

.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.profile-image-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.profile-image-preview {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.profile-image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-icon {
    font-size: 3rem;
}

.tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.tag {
    background: var(--primary-light);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.tag-remove {
    cursor: pointer;
    font-weight: bold;
}

/* Main View */
#main-view {
    padding-bottom: 70px;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    max-width: 480px;
    width: 100%;
    background: white;
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.nav-item.active {
    color: var(--primary);
}

.nav-icon {
    font-size: 1.5rem;
}

.nav-label {
    font-size: 0.75rem;
    font-weight: 500;
}

/* Sections */
.section {
    display: none;
    padding: var(--spacing-md);
    min-height: calc(100vh - 70px);
}

.section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

/* Card Stack (Swipe) */
.card-stack {
    position: relative;
    width: 100%;
    height: 500px;
    margin-bottom: var(--spacing-lg);
}

.profile-card {
    position: absolute;
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    cursor: grab;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.profile-card:active {
    cursor: grabbing;
}

.profile-card.swiping {
    transition: none;
}

.profile-card.swipe-right {
    animation: swipeRight 0.5s ease-out forwards;
}

.profile-card.swipe-left {
    animation: swipeLeft 0.5s ease-out forwards;
}

@keyframes swipeRight {
    to {
        transform: translateX(150%) rotate(20deg);
        opacity: 0;
    }
}

@keyframes swipeLeft {
    to {
        transform: translateX(-150%) rotate(-20deg);
        opacity: 0;
    }
}

.card-image {
    width: 100%;
    height: 70%;
    object-fit: cover;
    background: var(--gradient-primary);
}

.card-info {
    padding: var(--spacing-md);
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.8));
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    color: white;
}

.card-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.card-details {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
}

.card-bio {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.card-interests {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.interest-tag {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
}

.compatibility-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--gradient-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

/* Swipe Actions */
.swipe-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.action-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.pass-btn {
    background: white;
    color: #FF5252;
    border: 3px solid #FF5252;
}

.like-btn {
    background: var(--gradient-primary);
    color: white;
}

.action-btn:hover {
    transform: scale(1.1);
}

.action-btn:active {
    transform: scale(0.95);
}

/* Matches List */
.matches-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.match-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.match-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.match-card-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    background: var(--gradient-primary);
}

.match-card-info {
    padding: var(--spacing-sm);
}

.match-card-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.match-card-score {
    font-size: var(--font-size-sm);
    color: var(--primary);
}

/* Chat */
.chat-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.chat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: white;
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.chat-item:hover {
    background: var(--bg-primary);
}

.chat-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--gradient-primary);
}

.chat-item-info {
    flex: 1;
}

.chat-item-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.chat-item-preview {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.chat-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: white;
    box-shadow: var(--shadow-sm);
}

.messages-container {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.message {
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

.message.sent {
    align-items: flex-end;
}

.message-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 18px;
    word-wrap: break-word;
}

.message.sent .message-bubble {
    background: var(--gradient-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.received .message-bubble {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.message-form {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.message-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 24px;
    font-size: var(--font-size-base);
}

.btn-send {
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 24px;
    font-weight: 600;
    cursor: pointer;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity var(--transition-base);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 20px;
    max-width: 90%;
    text-align: center;
    animation: modalSlideUp 0.3s ease-out;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.match-modal-content h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.match-images {
    margin: var(--spacing-lg) 0;
}

.match-images img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
}

.match-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

/* Responsive */
@media (min-width: 768px) {
    .app-container {
        max-width: 480px;
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

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

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}