/* =========================================================
   AnoBrain — Dark Design System (ScheduleGenius-matched)
   ========================================================= */

/* ----- Design Tokens ----- */
:root {
    /* Dark backgrounds */
    --dark-950: #020617;
    --dark-900: #0f172a;
    --dark-800: #1e293b;
    --dark-700: #334155;
    --dark-600: #475569;

    /* Primary — blue */
    --blue:       #60a5fa;
    --blue-light: #93c5fd;
    --blue-900:   rgba(30, 58, 138, 0.5);

    /* Secondary — violet */
    --violet:       #a78bfa;
    --violet-light: #c4b5fd;
    --violet-900:   rgba(76, 29, 149, 0.5);

    /* Accents */
    --emerald:      #34d399;
    --emerald-900:  rgba(6, 78, 59, 0.5);
    --amber:        #fbbf24;
    --amber-900:    rgba(120, 53, 15, 0.5);
    --red-900:      rgba(127, 29, 29, 0.5);

    /* Background */
    --background-primary:   #020617;
    --background-secondary: #0f172a;
    --background-tertiary:  #1e293b;
    --background-gradient:  linear-gradient(135deg, #020617 0%, #0f172a 50%, rgba(30,58,138,0.15) 100%);

    /* Text */
    --text-primary:    #e2e8f0;
    --text-secondary:  #94a3b8;
    --text-muted:      #64748b;
    --text-on-primary: #ffffff;

    /* Surface */
    --surface-color:  #1e293b;
    --surface-border: #334155;
    --surface-hover:  #475569;
    --glass-bg:       rgba(30, 41, 59, 0.8);
    --glass-border:   rgba(255, 255, 255, 0.1);

    /* Status */
    --success-color: #34d399;
    --warning-color: #fbbf24;
    --error-color:   #f87171;
    --info-color:    #60a5fa;

    /* Transition */
    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
}

/* ----- Base ----- */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--dark-950);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'DM Sans', sans-serif;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

p { color: var(--text-secondary); }

a { color: var(--blue); }
a:hover { color: var(--blue-light); }

code, .font-mono {
    font-family: 'Space Mono', monospace;
}

/* ----- Bootstrap Color Overrides ----- */
:root {
    --bs-primary: #60a5fa;
    --bs-primary-rgb: 96, 165, 250;
    --bs-body-bg: #020617;
    --bs-body-color: #e2e8f0;
}

/* ----- Gradient Text ----- */
.gradient-text {
    background: linear-gradient(135deg, var(--blue), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ----- Navbar ----- */
.navbar {
    background: rgba(15, 23, 42, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--dark-800) !important;
    padding: 0.9rem 0;
    transition: background-color var(--transition);
}

.navbar .navbar-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.navbar .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.4rem 0.75rem !important;
    transition: color var(--transition-fast);
}
.navbar .nav-link:hover,
.navbar .nav-link:focus {
    color: #ffffff !important;
}

.navbar .dropdown-menu {
    background-color: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: 0.75rem;
    padding: 0.5rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.navbar .dropdown-item {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.45rem 0.85rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}
.navbar .dropdown-item:hover {
    background-color: var(--dark-700);
    color: #ffffff;
}

.navbar .navbar-toggler {
    border-color: var(--dark-700);
}
.navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Navbar CTA button */
.navbar .btn-nav-cta {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    color: #fff !important;
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.45rem 1.1rem;
    border-radius: 8px;
    border: none;
    transition: all var(--transition);
}
.navbar .btn-nav-cta:hover {
    filter: brightness(1.15);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59,130,246,0.4);
}

/* ----- Buttons ----- */
.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    min-width: 160px;
    background: linear-gradient(135deg, var(--_p, #3b82f6), var(--_s, #6366f1));
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    cursor: pointer;
}
.btn-cta:hover {
    color: #ffffff;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(59,130,246,0.35);
    filter: brightness(1.12);
}
.btn-cta--sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 10px;
    min-width: 120px;
}
.btn-cta--lg {
    padding: 1rem 1.75rem;
    font-size: 1.05rem;
    border-radius: 14px;
    min-width: 180px;
}
.btn-cta--ghost {
    background: transparent;
    border: 1px solid var(--dark-600);
    color: var(--text-primary);
    box-shadow: none;
}
.btn-cta--ghost:hover {
    background: var(--dark-800);
    border-color: var(--dark-500);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    filter: none;
}

/* Bootstrap btn-primary override */
.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    border: none;
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    transition: all var(--transition);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    box-shadow: 0 8px 24px rgba(59,130,246,0.3);
    transform: translateY(-2px);
    border: none;
}
.btn-outline-light {
    border-color: var(--dark-600);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    transition: all var(--transition);
}
.btn-outline-light:hover {
    background-color: var(--dark-800);
    border-color: var(--dark-500);
    color: #ffffff;
}

/* ----- Section Badge ----- */
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ----- Hero ----- */
.hero-section {
    padding: 9rem 0 6rem;
    position: relative;
    overflow: hidden;
    background: var(--background-gradient);
}
.hero-section::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 65%);
    pointer-events: none;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: #ffffff;
}
@media (max-width: 768px) {
    .hero-title { font-size: 2.25rem; }
    .hero-section { padding: 7rem 0 4rem; }
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 540px;
}

.hero-stat {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--dark-800);
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ----- Sections ----- */
.section-padding { padding: 6rem 0; }
@media (max-width: 768px) { .section-padding { padding: 4rem 0; } }

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
}
@media (max-width: 768px) { .section-title { font-size: 1.875rem; } }

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

/* ----- Cards ----- */
.card, .card-theme {
    background: var(--surface-color) !important;
    border: 1px solid var(--surface-border) !important;
    border-radius: 1rem !important;
    color: var(--text-primary);
    box-shadow: 0 4px 10px rgba(0,0,0,0.5) !important;
    transition: all var(--transition);
}
.card:hover, .card-theme:hover {
    border-color: var(--dark-600) !important;
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.4) !important;
}

.feature-card {
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: 1rem;
    padding: 2rem;
    height: 100%;
    transition: all var(--transition);
}
.feature-card:hover {
    border-color: var(--dark-600);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.35);
}

/* ----- Feature Icons ----- */
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}
.feature-icon.bg-blue-900   { background: var(--blue-900);   color: var(--blue); }
.feature-icon.bg-violet-900 { background: var(--violet-900); color: var(--violet); }
.feature-icon.bg-emerald-900{ background: var(--emerald-900);color: var(--emerald); }
.feature-icon.bg-amber-900  { background: var(--amber-900);  color: var(--amber); }

/* ----- Stats ----- */
.stat-number {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Space Mono', monospace;
    line-height: 1;
}
@media (max-width: 768px) { .stat-number { font-size: 2rem; } }

/* ----- Color utilities ----- */
.text-blue    { color: var(--blue) !important; }
.text-violet  { color: var(--violet) !important; }
.text-emerald { color: var(--emerald) !important; }
.text-amber   { color: var(--amber) !important; }
.text-muted   { color: var(--text-muted) !important; }
.text-secondary-theme { color: var(--text-secondary) !important; }

.bg-dark-950  { background-color: var(--dark-950) !important; }
.bg-dark-900  { background-color: var(--dark-900) !important; }
.bg-dark-800  { background-color: var(--dark-800) !important; }
.bg-gradient-hero { background: var(--background-gradient) !important; }

.border-dark-700 { border-color: var(--dark-700) !important; }
.border-dark-800 { border-color: var(--dark-800) !important; }

/* ----- Testimonial Card ----- */
.testimonial-card {
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: 1rem;
    padding: 2.5rem;
    height: 100%;
    transition: all var(--transition);
}
.testimonial-card:hover {
    border-color: var(--dark-600);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.35);
}
.testimonial-card blockquote p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
    margin: 0;
}

/* ----- CTA Section ----- */
.cta-section {
    background: linear-gradient(135deg, rgba(59,130,246,0.12) 0%, rgba(99,102,241,0.12) 100%);
    border: 1px solid rgba(96,165,250,0.2);
    border-radius: 1.5rem;
}

/* ----- Footer ----- */
footer {
    background: var(--dark-900);
    border-top: 1px solid var(--dark-800);
    padding: 4rem 0 2rem;
    color: var(--text-secondary);
}
footer h5 {
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}
footer a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}
footer a:hover { color: #ffffff; }
footer .footer-bottom {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ----- Forms ----- */
.form-control,
.form-select {
    background-color: var(--dark-900) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--surface-border) !important;
    border-radius: 0.75rem !important;
    padding: 0.7rem 0.9rem !important;
    font-size: 0.9rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus,
.form-select:focus {
    border-color: rgba(96,165,250,0.6) !important;
    box-shadow: 0 0 0 3px rgba(96,165,250,0.15) !important;
    background-color: var(--surface-color) !important;
    color: var(--text-primary) !important;
}
.form-control::placeholder { color: var(--text-muted); }
.form-select option { background-color: var(--dark-800); }

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

/* ----- Alerts (flash messages) ----- */
.alert {
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    color: var(--text-primary);
    border-radius: 0.75rem;
}
.alert-success { border-color: rgba(52,211,153,0.4); background: rgba(6,78,59,0.3); color: var(--emerald); }
.alert-danger  { border-color: rgba(248,113,113,0.4); background: rgba(127,29,29,0.3); color: #f87171; }
.alert-info    { border-color: rgba(96,165,250,0.4);  background: rgba(30,58,138,0.3); color: var(--blue); }

/* ----- Cookie Banner ----- */
#cookie-banner {
    background: var(--dark-800) !important;
    border-top: 1px solid var(--dark-700);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ----- Misc ----- */
.hover-opacity:hover {
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.hp {
    position: absolute;
    left: -100vw;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-10px); }
}