/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --text-primary: #f0f0f5;
    --text-secondary: #8e8ea0;
    --text-muted: #5a5a6e;
    --accent-1: #00B4D8;
    --accent-2: #0077B6;
    --accent-3: #00C9A7;
    --input-bg: rgba(255, 255, 255, 0.06);
    --input-border: rgba(255, 255, 255, 0.1);
    --input-focus: rgba(0, 180, 216, 0.5);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Animated Background Orbs ===== */
.bg-orbs {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-1);
    top: -10%;
    right: -5%;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: var(--accent-2);
    bottom: 10%;
    left: -8%;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25%      { transform: translate(30px, -40px) scale(1.05); }
    50%      { transform: translate(-20px, 20px) scale(0.95); }
    75%      { transform: translate(15px, 35px) scale(1.02); }
}

/* ===== Container ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 560px;
    margin: 0 auto;
    padding: 3rem 1.25rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* ===== Hero ===== */
.hero {
    text-align: center;
    animation: fadeUp 0.8s var(--transition) both;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-1);
    letter-spacing: 0.5px;
    margin-bottom: 1.25rem;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 1rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-3), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 420px;
    margin: 0 auto;
}

/* ===== Glass Card ===== */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(24px);
    box-shadow: var(--glass-shadow);
    animation: fadeUp 0.8s var(--transition) 0.15s both;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.card-icon {
    font-size: 2rem;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 180, 216, 0.15);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.card-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* ===== Input Grid ===== */
.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.45rem;
    letter-spacing: 0.3px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;
    background: var(--input-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

.input-wrapper input::placeholder {
    color: var(--text-muted);
}

.input-wrapper input:focus {
    border-color: var(--accent-1);
    box-shadow: 0 0 0 3px var(--input-focus);
}

.input-unit {
    position: absolute;
    right: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    color: var(--text-muted);
    pointer-events: none;
}

/* ===== Predict Button ===== */
.predict-btn {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.9rem 1.5rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.predict-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.15));
    opacity: 0;
    transition: opacity 0.3s;
}

.predict-btn:hover::before {
    opacity: 1;
}

.predict-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 180, 216, 0.35);
}

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

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform 0.3s;
}

.predict-btn:hover .btn-arrow {
    transform: translateX(3px);
}

.btn-loader {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.predict-btn.loading .btn-text,
.predict-btn.loading .btn-arrow {
    display: none;
}

.predict-btn.loading .btn-loader {
    display: block;
}

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

/* ===== Result Section ===== */
.result-section, .error-section {
    transition: var(--transition);
}

.result-section.hidden, .error-section.hidden {
    display: none;
}

.result-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
    margin: 1.75rem 0;
}

.result-card {
    text-align: center;
    padding: 1.5rem 0 0.5rem;
    animation: fadeUp 0.5s var(--transition) both;
}

.result-emoji {
    font-size: 3.5rem;
    margin-bottom: 0.75rem;
    animation: bounceIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes bounceIn {
    0%   { transform: scale(0); opacity: 0; }
    60%  { transform: scale(1.2); }
    100% { transform: scale(1); opacity: 1; }
}

.result-species {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.result-description {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 380px;
    margin: 0 auto 1.25rem;
}

/* ===== Confidence Bar ===== */
.confidence-bar-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    max-width: 320px;
    margin: 0 auto 1.25rem;
}

.confidence-label {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.confidence-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 100px;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    border-radius: 100px;
    background: linear-gradient(90deg, var(--accent-1), var(--accent-3));
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.confidence-value {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-3);
    min-width: 40px;
    text-align: right;
}

/* ===== Result Badge ===== */
.result-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 201, 167, 0.1);
    border: 1px solid rgba(0, 201, 167, 0.2);
    border-radius: 100px;
    padding: 0.35rem 0.85rem;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--accent-3);
    letter-spacing: 0.3px;
}

.result-badge-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent-3);
}

/* ===== Error ===== */
.error-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 107, 107, 0.08);
    border: 1px solid rgba(255, 107, 107, 0.2);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    font-size: 0.88rem;
    color: #FF6B6B;
    animation: fadeUp 0.4s var(--transition) both;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 1rem 0 0.5rem;
    animation: fadeUp 0.8s var(--transition) 0.3s both;
}

.footer p {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-sub {
    margin-top: 0.3rem;
    font-size: 0.7rem !important;
    letter-spacing: 0.5px;
}

.heart {
    color: #FF6B9D;
    animation: heartbeat 1.5s ease-in-out infinite;
    display: inline-block;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    15%      { transform: scale(1.2); }
    30%      { transform: scale(1); }
    45%      { transform: scale(1.15); }
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .container {
        padding: 2rem 1rem 1.5rem;
    }

    .hero-title {
        font-size: 2.1rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

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

    .glass-card {
        padding: 1.5rem;
    }

    .orb-1 { width: 250px; height: 250px; }
    .orb-2 { width: 200px; height: 200px; }
    .orb-3 { width: 180px; height: 180px; }
}