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

:root {
    --bg: #f0f2f5;
    --glass: rgba(255,255,255,0.72);
    --glass-hover: rgba(255,255,255,0.88);
    --glass-border: rgba(255,255,255,0.5);
    --card: rgba(255,255,255,0.85);
    --text: #1a1a1a;
    --text-dim: #999;
    --text-mid: #666;
    --accent: #ff5e62;
    --accent-glass: rgba(255,94,98,0.15);
    --green: #00d68f;
    --green-glass: rgba(0,214,143,0.15);
    --blue: #4b8bf4;
    --radius: 35px;
    --radius-sm: 35px;
    --shadow-sm: 0 2px 12px rgba(0,0,0,0.06);
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
    background: linear-gradient(135deg, #f0f2f5 0%, #e8ecf1 30%, #fce4ec 60%, #fff3e0 100%);
    background-attachment: fixed;
    color: var(--text);
    min-height: 100vh;
    overflow-x: clip;
    -webkit-font-smoothing: antialiased;
}

#app {
    max-width: 520px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 4px 8px 0;
}

@media (min-width: 768px) {
    #app {
        max-width: 600px;
        padding: 6px 10px 0;
    }
}

.hidden {
    display: none !important;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.2rem;
    margin: 0 0 6px 0;
    height: 52px;
    background: var(--glass);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    z-index: 100;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

nav .logo {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #ff9966);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav .nav-links {
    display: flex;
    gap: 2px;
    background: rgba(0,0,0,0.04);
    border-radius: 35px;
    padding: 3px;
}

nav .nav-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    padding: 0.45rem 0.85rem;
    border-radius: 35px;
    transition: all 0.25s;
    white-space: nowrap;
}

nav .nav-btn:hover {
    color: var(--text);
}

nav .nav-btn.active {
    background: rgba(255,255,255,0.8);
    color: var(--text);
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    backdrop-filter: blur(10px);
}

nav .nav-btn.logout {
    color: var(--accent);
}

.auth-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    gap: 1rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 0.3rem;
}

.auth-icon {
    font-size: 3.5rem;
    margin-bottom: 0.3rem;
}

.auth-form h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.3rem;
    background: linear-gradient(135deg, var(--accent), #ff9966);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-subtitle {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 0.2rem;
}

.auth-form input {
    padding: 1rem 1.2rem;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    transition: all 0.25s;
}

.auth-form input:focus {
    border-color: var(--accent);
    background: var(--glass-hover);
    box-shadow: 0 0 0 4px var(--accent-glass);
}

.auth-form button {
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent), #ff9966);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: 0 4px 16px rgba(255,94,98,0.25);
}

.auth-form button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(255,94,98,0.35);
}

.auth-form button:active {
    transform: translateY(0);
}

.auth-form .switch-link {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
    cursor: pointer;
}

.auth-form .switch-link span {
    color: var(--accent);
    font-weight: 600;
}

.discover-screen,
.matches-screen,
.add-pet-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 0 2px;
    min-height: 0;
}

.swipe-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 0;
}

.pet-card {
    position: absolute;
    top: 10px;
    left: 0;
    right: 0;
    margin: 0 auto;
    width: 92%;
    max-width: 400px;
    height: calc(100% - 20px);
    max-height: 500px;
    background: var(--card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    will-change: transform;
    cursor: grab;
    transition: box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .pet-card {
        max-width: 440px;
        max-height: 580px;
    }
    .pet-card .pet-photo {
        min-height: 300px;
    }
}

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

.pet-card .pet-photo-container {
    width: 100%;
    flex: 1;
    position: relative;
    overflow: hidden;
    min-height: 150px;
    cursor: pointer;
}

.pet-card .pet-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: linear-gradient(135deg, #f0f0f0, #e8e8e8);
}

.photo-dots {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 5;
}

.photo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    border: 1px solid rgba(0,0,0,0.15);
    transition: all 0.2s;
}

.photo-dot.active {
    background: #fff;
    border-color: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
    transform: scale(1.2);
}

.pet-card .stamp {
    position: absolute;
    top: 6%;
    font-size: 3.5rem;
    font-weight: 900;
    padding: 0.4rem 1.2rem;
    border-radius: var(--radius-sm);
    border: 5px solid;
    z-index: 5;
    pointer-events: none;
    transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.2s;
    opacity: 0;
    backdrop-filter: blur(4px);
}

.stamp.like {
    border-color: var(--green);
    color: var(--green);
    right: 6%;
    transform: rotate(25deg) scale(0);
    background: rgba(0,214,143,0.08);
}

.stamp.nope {
    border-color: var(--accent);
    color: var(--accent);
    left: 6%;
    transform: rotate(-25deg) scale(0);
    background: rgba(255,94,98,0.08);
}

.stamp.like.show {
    transform: rotate(25deg) scale(1);
    opacity: 1;
}

.stamp.nope.show {
    transform: rotate(-25deg) scale(1);
    opacity: 1;
}

.pet-card .pet-info {
    padding: 0.8rem 1rem;
    background: rgba(255,255,255,0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.pet-card .pet-name-age {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.2rem;
}

.pet-card .pet-name {
    font-size: 1.5rem;
    font-weight: 800;
}

.pet-card .pet-age {
    font-size: 1.1rem;
    color: var(--text-dim);
}

.pet-card .pet-breed {
    color: var(--text-mid);
    font-size: 0.9rem;
    margin: 0.1rem 0;
    font-weight: 500;
}

.pet-card .pet-location {
    color: var(--blue);
    font-size: 0.82rem;
    font-weight: 600;
    margin-top: 0.2rem;
}

.pet-card .pet-desc {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-top: 0.5rem;
    line-height: 1.5;
}

.pet-card .pet-type-badge {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pet-type-badge.match {
    background: rgba(255,94,98,0.12);
    color: var(--accent);
}

.pet-type-badge.adoptie {
    background: rgba(0,214,143,0.12);
    color: #00875a;
}

.swipe-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    padding: 0.5rem 0;
    flex-shrink: 0;
}

.swipe-buttons button {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.swipe-buttons .btn-dislike {
    background: var(--glass);
    color: var(--accent);
}

.swipe-buttons .btn-dislike:hover {
    transform: scale(1.12);
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 6px 24px rgba(255,94,98,0.3);
}

.swipe-buttons .btn-like {
    background: var(--glass);
    color: var(--green);
}

.swipe-buttons .btn-like:hover {
    transform: scale(1.12);
    background: var(--green);
    color: #fff;
    border-color: var(--green);
    box-shadow: 0 6px 24px rgba(0,214,143,0.3);
}

.swipe-buttons .btn-star {
    background: var(--glass);
    color: #ffb800;
    width: 46px;
    height: 46px;
    font-size: 1.2rem;
}

.swipe-buttons .btn-star:hover {
    transform: scale(1.12);
    background: #ffb800;
    color: #fff;
    border-color: #ffb800;
    box-shadow: 0 6px 24px rgba(255,184,0,0.3);
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    gap: 1rem;
    text-align: center;
    padding: 2rem;
}

.empty-state .emoji {
    font-size: 5rem;
}

.empty-state button {
    margin-top: 0.5rem;
    padding: 0.7rem 2rem;
    border: none;
    border-radius: 35px;
    background: linear-gradient(135deg, var(--accent), #ff9966);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(255,94,98,0.2);
    transition: all 0.2s;
}

.empty-state button:hover {
    transform: translateY(-1px);
}

.match-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 200;
    gap: 1rem;
    animation: scaleIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

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

.match-overlay .match-hearts {
    font-size: 4rem;
    animation: pulse 0.6s ease infinite alternate;
}

@keyframes pulse {
    from { transform: scale(1); }
    to { transform: scale(1.15); }
}

.match-overlay h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
}

.match-overlay p {
    color: rgba(255,255,255,0.8);
    text-align: center;
    padding: 0 2rem;
}

.match-overlay button {
    margin-top: 0.5rem;
    padding: 0.8rem 2rem;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    color: var(--text);
    border: none;
    border-radius: 35px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s;
    margin: 0.3rem;
}

.match-overlay button:hover {
    transform: scale(1.05);
    background: #fff;
}

.matches-screen h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.matches-list {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.match-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s;
}

.match-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    background: var(--glass-hover);
}

.match-item .match-photo {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    background: #f0f0f0;
    box-shadow: var(--shadow-sm);
}

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

.match-item .match-name {
    font-weight: 700;
    font-size: 0.95rem;
}

.match-item .match-species {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 600;
}

.match-item .match-owner {
    font-size: 0.78rem;
    color: var(--text-dim);
}

.add-pet-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    padding: 0.5rem 0;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

.add-pet-form h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 0.3rem;
}

.add-pet-form label {
    font-size: 0.8rem;
    color: var(--text-mid);
    font-weight: 600;
    margin-bottom: -0.4rem;
    margin-top: 0.2rem;
}

.add-pet-form input,
.add-pet-form select,
.add-pet-form textarea {
    padding: 0.85rem 1rem;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    transition: all 0.25s;
}

.add-pet-form input:focus,
.add-pet-form select:focus,
.add-pet-form textarea:focus {
    border-color: var(--accent-light);
    background: var(--glass-hover);
    box-shadow: 0 0 0 4px var(--accent-glass);
}

.add-pet-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.add-pet-form textarea {
    resize: vertical;
    min-height: 80px;
}

.add-pet-form button[type="submit"],
.add-pet-form button:not(.filter-apply) {
    padding: 0.95rem;
    background: linear-gradient(135deg, var(--green), #00b884);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    margin-top: 0.5rem;
    box-shadow: 0 4px 16px rgba(0,214,143,0.2);
    transition: all 0.25s;
}

.add-pet-form button:hover {
    transform: translateY(-1px);
}

.add-pet-form .photo-preview {
    width: 100%;
    max-height: 200px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: #f0f0f0;
}

.filter-bar {
    padding: 0;
    flex-shrink: 0;
}

.filter-row {
    display: flex;
    gap: 0.4rem;
    padding: 0 0 4px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.filter-row::-webkit-scrollbar {
    height: 0;
}

.species-tab {
    padding: 0.4rem 0.9rem;
    border: 2px solid transparent;
    border-radius: 35px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-mid);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.25s;
    white-space: nowrap;
    flex-shrink: 0;
}

.species-tab:hover {
    background: var(--glass-hover);
    color: var(--accent);
}

.species-tab.active {
    background: linear-gradient(135deg, var(--accent), #ff9966);
    color: #fff;
    box-shadow: 0 4px 16px rgba(255,94,98,0.25);
}

.filter-row-secondary {
    display: flex;
    gap: 0.3rem;
    align-items: center;
    padding: 2px 0;
}

.filter-select {
    padding: 0.55rem 2rem 0.55rem 0.9rem;
    border: 2px solid transparent;
    border-radius: 35px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    font-size: 0.82rem;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%23999' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.7rem center;
    font-family: inherit;
}

.filter-input {
    flex: 1;
    padding: 0.55rem 1rem;
    border: 2px solid transparent;
    border-radius: 35px;
    background: var(--glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    font-size: 0.82rem;
    outline: none;
    font-family: inherit;
    transition: all 0.25s;
}

.filter-input:focus {
    border-color: var(--accent-light);
    background: var(--glass-hover);
    box-shadow: 0 0 0 4px var(--accent-glass);
}

.filter-apply {
    padding: 0.55rem 1.2rem;
    border: none;
    border-radius: 35px;
    background: linear-gradient(135deg, var(--accent), #ff9966);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.filter-apply:hover {
    opacity: 0.9;
}

.account-type-btns {
    display: flex;
    gap: 0.5rem;
    background: rgba(0,0,0,0.04);
    border-radius: 35px;
    padding: 3px;
}

.account-type-btn {
    flex: 1;
    padding: 0.55rem 1rem;
    border: none;
    border-radius: 35px;
    background: transparent;
    color: var(--text-dim);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
}

.account-type-btn.active {
    background: rgba(255,255,255,0.8);
    color: var(--text);
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    backdrop-filter: blur(10px);
}

.pet-type-toggle {
    display: flex;
    gap: 0.5rem;
    background: rgba(0,0,0,0.04);
    border-radius: 35px;
    padding: 3px;
    margin: 2px 0;
}

.pet-type-btn {
    flex: 1;
    padding: 0.55rem 1rem;
    border: none;
    border-radius: 35px;
    background: transparent;
    color: var(--text-dim);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s;
}

.pet-type-btn.active {
    background: rgba(255,255,255,0.8);
    color: var(--text);
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    backdrop-filter: blur(10px);
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(26,26,26,0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: #fff;
    padding: 0.8rem 1.8rem;
    border-radius: 35px;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 300;
    animation: toastIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

@keyframes toastIn {
    from { transform: translateX(-50%) translateY(20px); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.toast.error {
    background: rgba(255,94,98,0.95);
}

.app-footer {
    text-align: center;
    padding: 0.8rem;
    font-size: 0.72rem;
    color: var(--text-dim);
    flex-shrink: 0;
    margin-top: auto;
}

.app-footer a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.app-footer a:hover {
    text-decoration: underline;
}