/**
 * AI Photo Trend - Base Styles
 * Root variables, reset, typography, navigation, buttons, utilities
 */

/* ===== ROOT & RESET ===== */
:root {
    --bg-dark: #0a0a0f;
    --bg-card: #14141f;
    --accent-purple: #b300ff;
    --accent-red: #ff0044;
    --text-primary: #d8d8e3;
    --text-secondary: #8a8a9f;
    --border-color: #2a2a3f;
    --success: #00ff88;
    --warning: #ffaa00;
    --error: #ff0044;
    
    /* Safe Area Insets for iOS notch/dynamic island */
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
}

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

html {
    overflow-x: hidden; /* Prevent horizontal scroll on html */
    width: 100%;
    max-width: 100vw;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.5;
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height for mobile */
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(179, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 68, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
    overflow-x: hidden; /* Prevent horizontal scroll */
    position: relative;
    width: 100%;
    max-width: 100vw; /* Prevent overflow */
    /* Safe area padding for iOS notch/dynamic island */
    padding-top: var(--safe-area-top);
    padding-left: var(--safe-area-left);
    padding-right: var(--safe-area-right);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--text-primary);
    transition: font-size 0.3s ease;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
/* ===== BUTTONS ===== */
.btn {
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
    font-family: 'Poppins', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-red));
    color: white;
    box-shadow: 0 4px 15px rgba(179, 0, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(179, 0, 255, 0.6);
}

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

.btn-secondary:hover {
    background: var(--accent-purple);
    color: white;
}

.btn-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover .btn-glow {
    width: 300px;
    height: 300px;
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-back {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-back:hover {
    transform: translateX(-5px);
}

.link-glow {
    color: var(--accent-purple);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.link-glow:hover {
    color: var(--accent-red);
    text-shadow: 0 0 10px var(--accent-red);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-success { background: var(--success); color: var(--bg-dark); }
.btn-warning { background: var(--warning); color: var(--bg-dark); }
.btn-danger { background: var(--error); color: white; }

.btn-icon {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: transform 0.3s ease;
}

.btn-icon:hover {
    transform: scale(1.2);
}

.btn-delete {
    color: var(--error);
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(255, 0, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

.info-box {
    background: rgba(179, 0, 255, 0.1);
    border: 1px solid var(--accent-purple);
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
}

/* ===== UTILITIES ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    overflow-x: hidden; /* Prevent horizontal overflow */
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    margin-top: 4rem;
}

.footer-links-simple {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.footer-links-simple a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-links-simple a:hover {
    color: var(--accent-purple);
}

.auth-links {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.auth-links a:hover {
    color: var(--accent-purple);
}

.auth-links span {
    color: var(--text-secondary);
    opacity: 0.5;
}