/* ========================================
   CONTINUUM STUDIO — COMPONENTS
   Buttons, Cards, Navigation, Forms
   ======================================== */

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    right: 32px;
    width: 2px;
    height: 0%;
    background: linear-gradient(180deg, var(--gold), var(--gold-dim));
    z-index: 9999;
}

@media (max-width: 768px) {
    .scroll-progress {
        right: 16px;
    }
}

/* Animated Background - Grid */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.03;
    background-image:
        linear-gradient(var(--muted) 1px, transparent 1px),
        linear-gradient(90deg, var(--muted) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* Animated Background - Grain */
.bg-grain {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(11, 15, 20, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(167, 176, 188, 0.08);
    transition: background 0.3s ease;
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--ivory);
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.logo-mark {
    color: var(--gold);
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width 0.3s var(--ease-out-expo);
}

.nav-link:hover {
    color: var(--ivory);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-ctas {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--ivory);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:first-child {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:last-child {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 1024px) {

    .nav-links,
    .nav-ctas {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--obsidian);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-inner {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-link {
    font-size: 1.5rem;
    color: var(--ivory);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: -0.02em;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(167, 176, 188, 0.1);
    transition: color 0.2s ease;
}

.mobile-link:hover {
    color: var(--gold);
}

.mobile-ctas {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.mobile-micro {
    color: var(--muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-decoration: none;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gold);
    color: var(--obsidian);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.btn-primary:hover {
    box-shadow: 0 8px 32px var(--gold-glow);
}

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

.btn-outline {
    background: transparent;
    color: var(--ivory);
    border: 1px solid rgba(237, 233, 226, 0.2);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: var(--gold-dim);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    padding: 0.5rem 1rem;
}

.btn-ghost:hover {
    color: var(--ivory);
}

/* Cards */
.problem-card,
.capability-card,
.faq-item,
.stat-card,
.comparison-card {
    padding: var(--space-xl);
    background: var(--surface);
    border: 1px solid rgba(167, 176, 188, 0.08);
    border-radius: 8px;
    transition: all 0.4s var(--ease-out-expo);
}

.problem-card:hover,
.capability-card:hover,
.faq-item:hover {
    border-color: var(--gold-glow);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(200, 169, 106, 0.15);
}

.card-number,
.capability-number {
    font-family: var(--font-mono);
    font-size: 0.625rem;
    color: var(--gold);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    display: block;
}

.card-title,
.capability-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--ivory);
    margin-bottom: var(--space-sm);
}

.card-body {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.6;
}

/* Form Elements */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
}

.form-group input,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 1rem;
    padding: var(--space-md);
    background: var(--surface);
    border: 1px solid rgba(167, 176, 188, 0.15);
    border-radius: 6px;
    color: var(--ivory);
    transition: all 0.2s ease;
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--muted-dark);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-dim);
}

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

/* Toast */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: var(--space-md) var(--space-xl);
    background: var(--surface-elevated);
    border: 1px solid rgba(167, 176, 188, 0.15);
    border-radius: 8px;
    color: var(--ivory);
    font-size: 0.9375rem;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-out-expo);
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

/* Footer */
.footer {
    padding: var(--space-3xl) 0;
    border-top: 1px solid rgba(167, 176, 188, 0.08);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-brand .logo-mark {
    font-size: 1.25rem;
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ivory);
}

.footer-tagline {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--muted-dark);
    letter-spacing: 0.02em;
}