/* ═══════════════════════════════════════════════════════════════════════
   MahaFund Brief — Design System
   Style: Minimalism & Swiss Style | Light Institutional
   Palette: Trust Teal + Professional Blue
   Typography: Cinzel (headings) / Josefin Sans (body)
   ═══════════════════════════════════════════════════════════════════════ */

/* ── CSS VARIABLES ──────────────────────────────────────────────────── */
:root {
    --color-primary: #0F766E;
    --color-primary-light: #14B8A6;
    --color-primary-dark: #0D5C56;
    --color-on-primary: #FFFFFF;
    --color-accent: #0369A1;
    --color-accent-light: #0EA5E9;
    --color-background: #FAFCFD;
    --color-surface: #FFFFFF;
    --color-surface-alt: #F0F7FA;
    --color-foreground: #134E4A;
    --color-foreground-secondary: #5F7A78;
    --color-muted: #E8F0F3;
    --color-border: #D1E3E0;
    --color-border-light: #E5F0EE;
    --color-destructive: #DC2626;
    --color-ring: #0F766E;
    --color-success: #059669;
    --color-warning: #D97706;

    --font-heading: 'Cinzel', serif;
    --font-body: 'Josefin Sans', sans-serif;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(15, 118, 110, 0.06);
    --shadow-md: 0 4px 12px rgba(15, 118, 110, 0.08);
    --shadow-lg: 0 8px 30px rgba(15, 118, 110, 0.10);
    --shadow-xl: 0 16px 48px rgba(15, 118, 110, 0.12);

    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ── RESET & BASE ───────────────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--color-foreground);
    background-color: var(--color-background);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ── HEADER ─────────────────────────────────────────────────────────── */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 252, 253, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-foreground);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.02em;
}

.logo-accent {
    color: var(--color-primary);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-foreground-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
    letter-spacing: 0.02em;
}

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-on-primary) !important;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-md);
}

/* ── HERO ───────────────────────────────────────────────────────────── */
.hero {
    padding: var(--space-4xl) 0 var(--space-3xl);
    background: linear-gradient(170deg, #F0FDFA 0%, #FAFCFD 40%, #F0F7FA 100%);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    background: rgba(15, 118, 110, 0.08);
    padding: var(--space-xs) var(--space-md);
    border-radius: 100px;
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-foreground);
    margin-bottom: var(--space-lg);
}

.hero-highlight {
    color: var(--color-primary);
}

.hero-subtitle {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--color-foreground-secondary);
    max-width: 520px;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

/* ── BUTTONS ────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    padding: 12px 28px;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

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

.btn-lg {
    font-size: 1rem;
    padding: 14px 32px;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* ── HERO CARD (Visual) ─────────────────────────────────────────────── */
.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.hero-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
    background: var(--color-surface-alt);
}

.hero-card-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.hero-card-dot.green {
    background: var(--color-success);
}

.hero-card-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-foreground-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-card-body {
    padding: var(--space-lg);
}

.hero-card-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
}

.hero-card-key {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-foreground-secondary);
}

.hero-card-val {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-foreground);
    text-align: right;
}

.hero-card-divider {
    height: 1px;
    background: var(--color-border-light);
    margin: var(--space-sm) 0;
}

.hero-card-row.highlight {
    padding: var(--space-sm) 0;
}

.hero-card-score {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

.hero-card-badge {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-warning);
    background: rgba(217, 119, 6, 0.1);
    padding: 2px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ── METRICS BAR ────────────────────────────────────────────────────── */
.metrics {
    background: var(--color-primary);
    padding: var(--space-xl) 0;
}

.metrics-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    text-align: center;
}

.metric-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-on-primary);
}

.metric-label {
    font-size: 0.75rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.02em;
}

/* ── SECTIONS ───────────────────────────────────────────────────────── */
.section {
    padding: var(--space-4xl) 0;
}

.section-alt {
    background: var(--color-surface-alt);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-sm);
    color: var(--color-foreground);
}

.section-subtitle {
    text-align: center;
    font-size: 1rem;
    font-weight: 300;
    color: var(--color-foreground-secondary);
    margin-bottom: var(--space-3xl);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* ── STEPS GRID ─────────────────────────────────────────────────────── */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.step-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    text-align: center;
    transition: box-shadow var(--transition-slow), transform var(--transition-slow);
}

.step-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary-light);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(15, 118, 110, 0.06);
    border-radius: 50%;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step-desc {
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
}

/* ── FEATURES GRID ──────────────────────────────────────────────────── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: box-shadow var(--transition-slow), transform var(--transition-slow);
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.feature-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(15, 118, 110, 0.06);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.feature-desc {
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--color-foreground-secondary);
    line-height: 1.6;
}

/* ── FORM ───────────────────────────────────────────────────────────── */
.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.form-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--color-border-light);
}

.form-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-foreground-secondary);
    background: var(--color-surface-alt);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.form-tab.active {
    background: var(--color-surface);
    color: var(--color-primary);
    font-weight: 600;
    box-shadow: inset 0 -2px 0 var(--color-primary);
}

.form-tab:hover:not(.active) {
    color: var(--color-foreground);
}

.form-body {
    padding: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-foreground);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

.required {
    color: var(--color-destructive);
}

.form-input {
    width: 100%;
    padding: 12px var(--space-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-foreground);
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    outline: none;
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.form-input::placeholder {
    color: #A0B2B0;
}

.form-hint {
    font-size: 0.7rem;
    color: var(--color-foreground-secondary);
    margin-top: var(--space-xs);
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.hidden {
    display: none !important;
}

/* ── PROGRESS ───────────────────────────────────────────────────────── */
.progress-area {
    padding: var(--space-xl);
    text-align: center;
}

.progress-bar-track {
    height: 6px;
    background: var(--color-muted);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent-light));
    border-radius: 100px;
    transition: width 0.5s ease;
}

.progress-status {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-foreground);
    margin-bottom: var(--space-lg);
}

.progress-steps {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
}

.progress-step {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-foreground-secondary);
}

.progress-step.active .progress-step-dot {
    background: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.2);
}

.progress-step.done .progress-step-dot {
    background: var(--color-success);
}

.progress-step-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    transition: all var(--transition-base);
}

/* ── ERROR ──────────────────────────────────────────────────────────── */
.error-area {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: rgba(220, 38, 38, 0.06);
    color: var(--color-destructive);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ── FOOTER ─────────────────────────────────────────────────────────── */
.footer {
    background: var(--color-foreground);
    padding: var(--space-2xl) 0;
    color: rgba(255, 255, 255, 0.6);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-xl);
}

.footer-logo {
    color: var(--color-on-primary);
    font-size: 1.1rem;
}

.footer-tagline {
    font-size: 0.75rem;
    margin-top: var(--space-xs);
}

.footer-right {
    text-align: right;
}

.footer-disclaimer {
    font-size: 0.7rem;
    max-width: 400px;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
}

.footer-copy {
    font-size: 0.7rem;
}

/* ── RESPONSIVE ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-visual {
        order: -1;
    }

    .metrics-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }

    .steps-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-right {
        text-align: center;
    }

    .nav {
        gap: var(--space-md);
    }
}

/* ── ANIMATIONS ─────────────────────────────────────────────────────── */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.progress-step.active .progress-step-dot {
    animation: pulse 1.5s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}