/* ==========================================================
   FrevoLabs — Main Global Stylesheet
   ========================================================== */

:root {
    --primary: #6C63FF;
    --primary-dark: #4F46E5;
    --primary-light: rgba(108, 99, 255, 0.15);
    --accent: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;

    --bg: #030712;
    --bg-2: #0F172A;
    --surface: #111827;
    --surface-2: #1F2937;
    --border: rgba(255, 255, 255, 0.08);

    --text: #F9FAFB;
    --muted: #9CA3AF;

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.35);

    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    font-size: 16px;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -0.02em;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; display: block; }

/* ==========================================================
   BUTTONS
   ========================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(108, 99, 255, 0.55);
    color: #fff;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #059669);
    color: #fff;
}
.btn-accent:hover { transform: translateY(-2px); color: #fff; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--text);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
}
.btn-ghost:hover { color: var(--text); background: var(--surface); }

.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-block { width: 100%; }

/* ==========================================================
   CARDS
   ========================================================== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.glass {
    background: rgba(17, 24, 39, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.card-hover:hover {
    transform: translateY(-4px);
    border-color: rgba(108, 99, 255, 0.4);
    box-shadow: var(--shadow-glow);
}

/* ==========================================================
   FORMS
   ========================================================== */
.form-group { margin-bottom: 20px; }

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-input::placeholder { color: var(--muted); opacity: 0.7; }

.form-textarea { min-height: 120px; resize: vertical; }

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 44px;
}

.form-checkbox, .form-radio {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
}

input[type="checkbox"], input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* ==========================================================
   BADGES
   ========================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.badge-hot    { background: rgba(239,68,68,0.15);  color: #F87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-warm   { background: rgba(245,158,11,0.15); color: #FBBF24; border: 1px solid rgba(245,158,11,0.3); }
.badge-cold   { background: rgba(156,163,175,0.15); color: #9CA3AF; border: 1px solid rgba(156,163,175,0.3); }
.badge-success{ background: rgba(16,185,129,0.15); color: #34D399; border: 1px solid rgba(16,185,129,0.3); }
.badge-primary{ background: var(--primary-light); color: #A5B4FC; border: 1px solid rgba(108,99,255,0.3); }

/* ==========================================================
   UTILITIES
   ========================================================== */
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; } .mt-5 { margin-top: 48px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }

.gradient-text {
    background: linear-gradient(135deg, #6C63FF 0%, #A5B4FC 50%, #10B981 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================
   ALERTS
   ========================================================== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid;
}
.alert-error   { background: rgba(239,68,68,0.1);  border-color: var(--danger);  color: #FCA5A5; }
.alert-success { background: rgba(16,185,129,0.1); border-color: var(--accent);  color: #6EE7B7; }
.alert-info    { background: rgba(108,99,255,0.1); border-color: var(--primary); color: #C7D2FE; }

/* ==========================================================
   SPINNER
   ========================================================== */
.spinner {
    width: 20px; height: 20px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }

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

.skeleton {
    background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
    border-radius: var(--radius);
    min-height: 20px;
}
@keyframes skeleton { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ==========================================================
   NAVBAR (global)
   ========================================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--border);
}
.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.nav-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-logo .logo-mark {
    width: 34px; height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: grid; place-items: center;
    font-weight: 800; color: #fff;
    box-shadow: 0 4px 16px rgba(108,99,255,0.4);
}
.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    color: var(--muted);
    font-size: 15px;
    font-weight: 500;
}
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 12px; }

.lang-select {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
}

@media (max-width: 900px) {
    .nav-links { display: none; }
}

/* ==========================================================
   FOOTER
   ========================================================== */
.footer {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    margin-top: 100px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
@media (max-width: 800px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-col h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--text); font-size: 14px; opacity: 0.8; }
.footer-col ul a:hover { opacity: 1; color: var(--primary); }
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 13px;
}

/* ==========================================================
   SCROLL ANIMATIONS
   ========================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }