/* =========================================================
   MODERN PREMIUM SaaS STYLESHEET
   Inspired by Linear / Vercel / Stripe
   ========================================================= */

:root {
    /* Surfaces */
    --bg-main: #ffffff;
    --bg-alt: #fafafa;
    --bg-elevated: #ffffff;
    --bg-subtle: #f5f5f7;

    /* Text */
    --text-dark: #0a0a0a;
    --text-body: #1a1a1a;
    --text-muted: #6b7280;
    --text-faint: #9ca3af;

    /* Brand */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-soft: rgba(37, 99, 235, 0.08);
    --primary-ring: rgba(37, 99, 235, 0.18);

    /* Accents */
    --success: #059669;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Borders */
    --border: rgba(15, 23, 42, 0.08);
    --border-strong: rgba(15, 23, 42, 0.14);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    --gradient-text: linear-gradient(135deg, #0a0a0a 0%, #475569 100%);
    --gradient-hero: radial-gradient(1200px 600px at 50% -10%, rgba(37, 99, 235, 0.12), transparent 60%),
                     radial-gradient(800px 400px at 80% 10%, rgba(79, 70, 229, 0.08), transparent 60%);
    --gradient-mesh: radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.05), transparent 50%),
                     radial-gradient(circle at 80% 80%, rgba(79, 70, 229, 0.04), transparent 50%);

    /* Shadows — soft, layered, premium */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 24px -8px rgba(15, 23, 42, 0.08), 0 4px 8px -4px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.12), 0 8px 16px -8px rgba(15, 23, 42, 0.06);
    --shadow-glow: 0 0 0 1px var(--primary-ring), 0 8px 24px -4px rgba(37, 99, 235, 0.25);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 28px;

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg-main);
    color: var(--text-body);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-feature-settings: 'cv11', 'ss01', 'ss03';
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
    letter-spacing: -0.01em;
}

h1, h2, h3, h4 {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

::selection { background: var(--primary-soft); color: var(--primary-hover); }

/* =========================================================
   LAYOUT
   ========================================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-bg {
    background: var(--bg-alt);
    padding: 120px 0;
    position: relative;
}

.section-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

section.container { padding: 120px 24px; }

/* =========================================================
   NAVBAR — frosted glass
   ========================================================= */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 16px 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
    transition: padding 0.3s var(--ease-out);
}

nav { display: flex; justify-content: space-between; align-items: center; }

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-dark);
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -0.03em;
}
.logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a.m-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.92rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s var(--ease-out);
}
.nav-links a.m-link:hover {
    color: var(--text-dark);
    background: var(--bg-subtle);
}

.nav-cta {
    background: var(--text-dark);
    color: #fff;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.92rem;
    margin-left: 12px;
    box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.2s var(--ease-out);
}
.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    background: #1a1a1a;
}

.mobile-toggle {
    display: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-dark);
    padding: 8px;
    border-radius: var(--radius-sm);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    background: var(--gradient-hero);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15, 23, 42, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.04) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, #000 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 50% at 50% 0%, #000 40%, transparent 100%);
    pointer-events: none;
}

.hero-text { max-width: 820px; position: relative; z-index: 1; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    color: var(--primary);
    padding: 8px 16px 8px 12px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.82rem;
    margin-bottom: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xs);
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.5); }
    70% { box-shadow: 0 0 0 12px rgba(37, 99, 235, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

h1 {
    font-size: clamp(2.75rem, 6.5vw, 5rem);
    margin-bottom: 24px;
    letter-spacing: -0.04em;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.18rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 620px;
    line-height: 1.6;
}

.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
    padding: 14px 26px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all 0.2s var(--ease-out);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.98rem;
    letter-spacing: -0.01em;
    cursor: pointer;
    border: none;
}

.btn-main {
    background: var(--text-dark);
    color: #fff;
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.btn-main:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.16);
    background: #1a1a1a;
}

.btn-alt {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-strong);
    color: var(--text-dark);
}
.btn-alt:hover {
    background: #fff;
    border-color: var(--text-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* =========================================================
   SECTION HEADINGS
   ========================================================= */
.section-title { margin-bottom: 64px; max-width: 640px; position: relative; }
.section-title.center { text-align: center; margin: 0 auto 64px auto; }
.section-title h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}
.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* =========================================================
   PAIN POINTS
   ========================================================= */
.pain-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    position: relative;
}

.pain-card {
    background: var(--bg-elevated);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s var(--ease-out);
    box-shadow: var(--shadow-xs);
    position: relative;
    overflow: hidden;
}
.pain-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
}
.pain-card i {
    font-size: 1.5rem;
    color: var(--danger);
    margin-bottom: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(239, 68, 68, 0.08);
    border-radius: var(--radius-md);
}
.pain-card p { color: var(--text-dark); font-weight: 500; font-size: 1.02rem; line-height: 1.55; }
.pain-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-strong);
}

.pain-card.special {
    background: linear-gradient(135deg, #0a0a0a 0%, #1e293b 100%);
    border-color: transparent;
    color: #fff;
}
.pain-card.special::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% -20%, rgba(37, 99, 235, 0.3), transparent 50%);
    pointer-events: none;
}
.pain-card.special p, .pain-card.special strong { color: #fff; position: relative; z-index: 1; }
.pain-card.special i {
    color: var(--warning);
    background: rgba(251, 191, 36, 0.12);
    position: relative;
    z-index: 1;
}

/* =========================================================
   RESULTS
   ========================================================= */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
}

.result-card {
    background: var(--bg-elevated);
    padding: 40px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}
.result-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-strong);
}

.result-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(5, 150, 105, 0.08);
    color: var(--success);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 20px;
    border: 1px solid rgba(5, 150, 105, 0.15);
}

.result-card h3 { font-size: 1.4rem; margin-bottom: 20px; letter-spacing: -0.02em; }

.stat-highlight {
    font-size: 3.5rem;
    font-weight: 800;
    font-family: 'Plus Jakarta Sans';
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 20px;
    line-height: 1;
    letter-spacing: -0.04em;
}
.stat-highlight span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
    display: block;
    margin-top: 8px;
    background: none;
    -webkit-text-fill-color: var(--text-muted);
    letter-spacing: -0.01em;
}

.result-card p { color: var(--text-muted); line-height: 1.65; }
.result-card strong { color: var(--text-dark); font-weight: 600; }

/* =========================================================
   PROCESS / TIMELINE
   ========================================================= */
.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.step-card {
    background: var(--bg-elevated);
    padding: 32px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    position: relative;
    transition: all 0.3s var(--ease-out);
    box-shadow: var(--shadow-xs);
}
.step-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-ring);
    box-shadow: var(--shadow-lg);
}
.step-num {
    font-size: 3rem;
    font-weight: 800;
    font-family: 'Plus Jakarta Sans';
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(37, 99, 235, 0.04));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: absolute;
    top: 20px;
    right: 24px;
    line-height: 1;
    letter-spacing: -0.04em;
}
.step-card h4 { font-size: 1.15rem; margin-bottom: 12px; margin-top: 24px; letter-spacing: -0.02em; }
.step-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }

/* =========================================================
   TESTIMONIALS
   ========================================================= */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.testimonial-card {
    background: var(--bg-elevated);
    padding: 36px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s var(--ease-out);
    position: relative;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stars { color: var(--warning); margin-bottom: 18px; font-size: 1rem; letter-spacing: 2px; }
.testimonial-card p {
    font-size: 1.05rem;
    color: var(--text-dark);
    margin-bottom: 28px;
    font-weight: 450;
    font-style: normal;
    line-height: 1.65;
    letter-spacing: -0.01em;
}
.client-info strong { display: block; font-size: 1rem; color: var(--text-dark); font-weight: 600; }
.client-info span { color: var(--text-muted); font-size: 0.88rem; }

/* =========================================================
   FAQ
   ========================================================= */
.faq-container { max-width: 800px; margin: 0; }

.faq-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.2s var(--ease-out);
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item.active {
    border-color: var(--primary-ring);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 22px 24px;
    background: none;
    border: none;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s var(--ease-out);
    letter-spacing: -0.01em;
}
.faq-question:hover { color: var(--primary); }
.faq-question i {
    transition: transform 0.3s var(--ease-out);
    color: var(--text-muted);
    font-size: 0.9rem;
}
.faq-item.active .faq-question { color: var(--primary); }
.faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--ease-out);
}
.faq-answer p { padding: 0 24px 22px 24px; color: var(--text-muted); line-height: 1.65; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-box {
    background: linear-gradient(135deg, #0a0a0a 0%, #1e293b 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    box-shadow: var(--shadow-xl);
    position: relative;
}
.contact-box::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.25), transparent 50%),
                radial-gradient(circle at 100% 100%, rgba(79, 70, 229, 0.15), transparent 50%);
    pointer-events: none;
}

.contact-text { padding: 64px; color: #fff; position: relative; z-index: 1; }
.contact-text h2 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 2.2rem;
    letter-spacing: -0.03em;
}
.contact-text p { color: #94a3b8; font-size: 1.08rem; line-height: 1.65; }

.contact-socials { margin-top: 40px; display: flex; flex-direction: column; gap: 14px; }
.social-item {
    display: flex;
    align-items: center;
    gap: 14px;
    color: #cbd5e1;
    font-weight: 500;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    transition: all 0.2s var(--ease-out);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.social-item:hover {
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(4px);
}
.social-item i {
    font-size: 1.15rem;
    color: #fff;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.contact-form { background: var(--bg-elevated); padding: 64px; position: relative; z-index: 1; }
.input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }

input, textarea {
    width: 100%;
    background: var(--bg-subtle);
    border: 1px solid transparent;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    outline: none;
    margin-bottom: 14px;
    transition: all 0.2s var(--ease-out);
}
input::placeholder, textarea::placeholder { color: var(--text-faint); }
input:hover, textarea:hover { background: #eef0f3; }
input:focus, textarea:focus {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 4px var(--primary-soft);
}

.btn-submit {
    width: 100%;
    background: var(--text-dark);
    color: #fff;
    padding: 16px;
    border-radius: var(--radius-sm);
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s var(--ease-out);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.12);
    letter-spacing: -0.01em;
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.16);
    background: #1a1a1a;
}

/* =========================================================
   FOOTER
   ========================================================= */
footer {
    text-align: center;
    padding: 48px 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* =========================================================
   REVEAL ANIMATIONS
   ========================================================= */
.reveal-init {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal-init.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
    .contact-box { grid-template-columns: 1fr; }
    .contact-form, .contact-text { padding: 40px 28px; }
    .section-bg, section.container { padding: 80px 24px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-toggle { display: block; }
    .input-grid { grid-template-columns: 1fr; }
    h1 { font-size: 2.4rem; }
    .hero { padding-top: 120px; text-align: center; }
    .hero-badge { margin: 0 auto 24px auto; }
    .hero p { margin: 0 auto 32px auto; }
    .hero-btns { justify-content: center; flex-direction: column; width: 100%; }
    .hero-btns .btn { width: 100%; }
    .section-title.center { text-align: left; }
    .section-title h2 { font-size: 1.85rem; }
    .stat-highlight { font-size: 2.75rem; }
    .contact-text h2 { font-size: 1.75rem; }
}