/* ===========================
   Civil Sahab — Design System
   Deep Navy + Safety Orange + WhatsApp Green
   Mobile-First, Utilitarian, Professional
   =========================== */

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary — Deep Navy / Slate */
    --navy: #0F172A;
    --navy-light: #1E293B;
    --navy-mid: #334155;
    --slate: #475569;
    --slate-light: #64748B;

    /* Accent — Safety Orange */
    --accent: #E8913A;
    --accent-dark: #D97706;
    --accent-light: #FBB03B;

    /* Action — WhatsApp Green */
    --whatsapp: #25D366;
    --whatsapp-dark: #1EBE57;
    --whatsapp-shadow: rgba(37, 211, 102, 0.35);

    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;

    /* Danger */
    --red: #EF4444;
    --red-light: #FEE2E2;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.25rem;
    --sp-6: 1.5rem;
    --sp-8: 2rem;
    --sp-10: 2.5rem;
    --sp-12: 3rem;
    --sp-16: 4rem;
    --sp-20: 5rem;
    --sp-24: 6rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(15,23,42,0.06);
    --shadow-md: 0 4px 12px rgba(15,23,42,0.08);
    --shadow-lg: 0 12px 32px rgba(15,23,42,0.12);
    --shadow-xl: 0 24px 48px rgba(15,23,42,0.16);

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --t-fast: 150ms var(--ease);
    --t-base: 250ms var(--ease);
    --t-slow: 400ms var(--ease);
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; }
a { text-decoration: none; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-5);
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.15;
    color: var(--navy);
    letter-spacing: -0.025em;
}

.text-accent {
    color: var(--accent);
}

.section-header {
    text-align: center;
    margin-bottom: var(--sp-12);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: var(--sp-4);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--slate-light);
    line-height: 1.7;
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: var(--sp-3);
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.95rem;
    padding: var(--sp-3) var(--sp-6);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--t-base);
    white-space: nowrap;
}

.btn-large {
    padding: var(--sp-4) var(--sp-8);
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

/* The main WhatsApp CTA */
.btn-whatsapp {
    background: var(--whatsapp);
    color: var(--white);
    box-shadow: 0 4px 14px var(--whatsapp-shadow), 0 2px 6px rgba(0,0,0,0.08);
}
.btn-whatsapp:hover {
    background: var(--whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--whatsapp-shadow), 0 4px 12px rgba(0,0,0,0.1);
}
.btn-whatsapp:active {
    transform: translateY(0);
}

/* Outline on dark bg */
.btn-outline-light {
    background: transparent;
    color: rgba(255,255,255,0.9);
    border-color: rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
    color: var(--white);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: background var(--t-base);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    color: var(--white);
    text-decoration: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    color: var(--accent);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--sp-8);
}

.nav-links a:not(.btn) {
    color: var(--gray-400);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color var(--t-fast);
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--white);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--t-base);
    border-radius: 1px;
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

.btn-nav {
    padding: var(--sp-2) var(--sp-5);
    font-size: 0.85rem;
    border-radius: var(--radius-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--sp-2);
}

.mobile-menu-btn span {
    width: 22px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--t-base);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--navy);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: var(--sp-6);
    flex-direction: column;
    gap: var(--sp-4);
    z-index: 999;
}

.mobile-menu a:not(.btn) {
    color: var(--gray-300);
    font-weight: 500;
    padding: var(--sp-3) 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.btn-mobile-cta {
    margin-top: var(--sp-2);
    padding: var(--sp-4);
    font-size: 1rem;
    border-radius: var(--radius-md);
    justify-content: center;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    padding: calc(64px + var(--sp-12)) 0 var(--sp-16);
    background: var(--navy);
    overflow: hidden;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 20%, rgba(232, 145, 58, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 20% 80%, rgba(37, 211, 102, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Subtle grid overlay */
.hero-bg-pattern::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-12);
    align-items: center;
}

.hero-content {
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-5);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-300);
    margin-bottom: var(--sp-6);
    letter-spacing: 0.02em;
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.75rem);
    font-weight: 900;
    line-height: 1.08;
    color: var(--white);
    margin-bottom: var(--sp-6);
    letter-spacing: -0.03em;
}

.hero-title .text-accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--gray-400);
    margin-bottom: var(--sp-8);
    line-height: 1.75;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
    align-items: center;
}

/* Hero USP List */
.hero-usp-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-3) var(--sp-6);
    margin-bottom: var(--sp-8);
    justify-content: center;
}

.hero-usp {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: 0.9rem;
    color: var(--gray-300);
    font-weight: 500;
}

.hero-usp svg {
    flex-shrink: 0;
}

/* Hero visual — phone mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: #000;
    border-radius: 40px;
    padding: 10px;
    box-shadow:
        0 0 0 1px rgba(255,255,255,0.1),
        0 30px 60px -15px rgba(0,0,0,0.5),
        0 0 80px -20px rgba(232, 145, 58, 0.15);
    position: relative;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 22px;
    background: #000;
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 30px;
    overflow: hidden;
}

/* WhatsApp UI inside phone */
.whatsapp-interface {
    height: 100%;
    background: #ECE5DD;
    display: flex;
    flex-direction: column;
}

.whatsapp-header {
    background: #075E54;
    padding: var(--sp-3) var(--sp-4);
    padding-top: 28px;
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.whatsapp-avatar {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--white);
    font-family: var(--font-display);
}

.whatsapp-info {
    flex: 1;
}

.whatsapp-name {
    color: var(--white);
    font-weight: 700;
    font-size: 0.9rem;
}

.whatsapp-status {
    color: rgba(255,255,255,0.7);
    font-size: 0.7rem;
}

/* Chat messages */
.whatsapp-messages {
    flex: 1;
    padding: var(--sp-3);
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    overflow: hidden;
}

.message {
    display: flex;
    opacity: 0;
    animation: msgFadeIn 0.4s ease forwards;
}

.message:nth-child(1) { animation-delay: 0.3s; }
.message:nth-child(2) { animation-delay: 1s; }
.message:nth-child(3) { animation-delay: 1.8s; }

@keyframes msgFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.received { justify-content: flex-start; }
.message.sent { justify-content: flex-end; }

.message-bubble {
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--radius-sm);
    max-width: 85%;
    font-size: 0.78rem;
    line-height: 1.45;
    color: var(--gray-800);
}

.message.received .message-bubble {
    background: var(--white);
    border-bottom-left-radius: 2px;
}

.message.sent .message-bubble {
    background: #DCF8C6;
    border-bottom-right-radius: 2px;
}

.msg-file {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.76rem;
}

.msg-meta {
    font-size: 0.68rem;
    color: var(--gray-500);
    margin-top: 2px;
}

.msg-typing {
    display: block;
    font-size: 0.72rem;
    color: var(--gray-500);
    font-style: italic;
    margin-bottom: 4px;
}

.msg-status {
    display: block;
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--gray-700);
}

.msg-success {
    background: var(--white) !important;
}

.msg-detail {
    font-size: 0.7rem;
    color: var(--gray-500);
    margin-top: 2px;
}

.msg-risk {
    color: var(--accent-dark);
    font-weight: 600;
    font-size: 0.72rem;
}

/* ===========================
   Industry Context Section
   =========================== */
.industry {
    padding: var(--sp-16) 0;
    background: var(--navy);
    color: var(--white);
}

.industry .section-title {
    color: var(--white);
}

.industry .section-subtitle {
    color: var(--gray-400);
}

.industry .section-label {
    color: var(--accent-light);
}

.industry-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
    margin-bottom: var(--sp-10);
}

.stat-card {
    text-align: center;
    padding: var(--sp-8) var(--sp-6);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    transition: all var(--t-base);
}

.stat-card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(232, 145, 58, 0.3);
    transform: translateY(-2px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 900;
    color: var(--accent);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: var(--sp-2);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.5;
}

.industry-bottom-text {
    text-align: center;
    font-size: clamp(0.95rem, 2vw, 1.05rem);
    color: var(--gray-400);
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
}

.industry-bottom-text strong {
    color: var(--white);
}

/* ===========================
   Problem Section
   =========================== */
.problem {
    padding: var(--sp-16) 0;
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}

.problem-card {
    padding: var(--sp-8);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--t-base);
}

.problem-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.problem-icon {
    color: var(--accent);
    margin-bottom: var(--sp-5);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(232, 145, 58, 0.08);
    border-radius: var(--radius-md);
}

.problem-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--sp-3);
    color: var(--navy);
}

.problem-card p {
    color: var(--slate-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

.problem-detail {
    margin-top: var(--sp-4);
    padding-top: var(--sp-4);
    border-top: 1px solid var(--gray-200);
    font-size: 0.88rem;
    color: var(--slate-light);
    line-height: 1.7;
    font-style: italic;
}

/* ===========================
   Features Section
   =========================== */
.features {
    padding: var(--sp-16) 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}

.feature-card {
    padding: var(--sp-8);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--t-base);
}

.feature-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(232, 145, 58, 0.08);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: var(--sp-5);
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--sp-3);
    color: var(--navy);
}

.feature-card p {
    color: var(--slate-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-top: var(--sp-5);
}

.feature-tag {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(232, 145, 58, 0.08);
    border: 1px solid rgba(232, 145, 58, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-dark);
    letter-spacing: 0.01em;
}

/* ===========================
   How It Works Section
   =========================== */
.how-it-works {
    padding: var(--sp-16) 0;
    background: var(--gray-50);
}

.steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-4);
    max-width: 1000px;
    margin: 0 auto;
}

.step {
    width: 100%;
    text-align: center;
}

.step-number {
    width: 52px;
    height: 52px;
    background: var(--navy);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    margin: 0 auto var(--sp-4);
    box-shadow: var(--shadow-md);
}

.step-icon-wrap {
    color: var(--accent);
    margin-bottom: var(--sp-3);
}

.step-content h3 {
    font-size: 1.15rem;
    margin-bottom: var(--sp-2);
    color: var(--navy);
}

.step-content p {
    color: var(--slate-light);
    max-width: 320px;
    margin: 0 auto;
    font-size: 0.95rem;
    line-height: 1.65;
}

.step-details {
    list-style: none;
    padding: 0;
    margin: var(--sp-4) auto 0;
    max-width: 360px;
    text-align: left;
}

.step-details li {
    position: relative;
    padding-left: var(--sp-5);
    font-size: 0.88rem;
    color: var(--slate-light);
    line-height: 1.65;
    margin-bottom: var(--sp-2);
}

.step-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.step-connector {
    color: var(--gray-300);
    transform: rotate(90deg);
    margin: var(--sp-2) 0;
}

/* ===========================
   Tender Types Section
   =========================== */
.tender-types {
    padding: var(--sp-16) 0;
    background: var(--white);
}

.tender-types-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}

.tender-type-card {
    padding: var(--sp-8);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--t-base);
}

.tender-type-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.tender-type-header {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    margin-bottom: var(--sp-4);
}

.tender-type-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    background: rgba(232, 145, 58, 0.08);
    border-radius: var(--radius-md);
    color: var(--accent);
    flex-shrink: 0;
}

.tender-type-header h3 {
    font-size: 1.1rem;
    color: var(--navy);
    margin: 0;
}

.tender-type-card p {
    color: var(--slate-light);
    line-height: 1.7;
    font-size: 0.93rem;
    margin-bottom: var(--sp-4);
}

.tender-type-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

.tender-type-tags span {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--slate);
    letter-spacing: 0.01em;
}

/* ===========================
   Comparison Section
   =========================== */
.comparison {
    padding: var(--sp-16) 0;
    background: var(--gray-50);
}

.comparison-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: var(--white);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.comparison-table thead {
    background: var(--navy);
}

.comparison-table th {
    padding: var(--sp-5) var(--sp-6);
    text-align: left;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--white);
    letter-spacing: 0.01em;
}

.comparison-table td {
    padding: var(--sp-5) var(--sp-6);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    vertical-align: top;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table tbody tr:hover {
    background: var(--gray-50);
}

.task-name {
    font-weight: 700;
    color: var(--navy) !important;
    white-space: nowrap;
}

.col-manual {
    background: rgba(239, 68, 68, 0.03);
}

.col-civil {
    background: rgba(37, 211, 102, 0.04);
}

.compare-label-bad {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: var(--red-light);
    color: var(--red);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
}

.compare-label-good {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(37, 211, 102, 0.12);
    color: var(--whatsapp-dark);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 700;
}

/* ===========================
   FAQ Section
   =========================== */
.faq {
    padding: var(--sp-16) 0;
    background: var(--white);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}

.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--t-base);
    background: var(--white);
}

.faq-item:hover {
    border-color: var(--gray-300);
}

.faq-item.active {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    padding: var(--sp-5) var(--sp-6);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--navy);
    text-align: left;
    line-height: 1.4;
    transition: color var(--t-fast);
}

.faq-question:hover {
    color: var(--accent-dark);
}

.faq-chevron {
    flex-shrink: 0;
    color: var(--gray-400);
    transition: transform var(--t-base);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
    color: var(--accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 var(--sp-6);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--sp-6) var(--sp-6);
}

.faq-answer p {
    font-size: 0.93rem;
    color: var(--slate-light);
    line-height: 1.75;
}

/* ===========================
   Proof / ROI Section
   =========================== */
.proof {
    padding: var(--sp-16) 0 var(--sp-24);
    background: var(--white);
}

.proof-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-12);
    align-items: start;
}

.proof-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-5);
    background: rgba(232, 145, 58, 0.08);
    border: 1px solid rgba(232, 145, 58, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-dark);
    margin-bottom: var(--sp-6);
    letter-spacing: 0.01em;
}

.proof-description {
    font-size: clamp(1rem, 2vw, 1.1rem);
    color: var(--slate-light);
    line-height: 1.8;
    margin-bottom: var(--sp-8);
}

.proof-description strong {
    color: var(--navy);
}

.proof-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-4);
}

.trust-badge-card {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    padding: var(--sp-5) var(--sp-6);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--t-base);
}

.trust-badge-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.trust-icon {
    color: var(--whatsapp);
    flex-shrink: 0;
}

.trust-badge-card span {
    font-weight: 600;
    color: var(--navy);
    font-size: 0.95rem;
}

.trust-desc {
    font-weight: 400 !important;
    color: var(--slate-light) !important;
    font-size: 0.85rem !important;
    line-height: 1.6;
    margin-top: var(--sp-1);
}

.proof-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--sp-6);
}

.proof-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
    font-size: 0.98rem;
    color: var(--gray-700);
    line-height: 1.65;
    margin-bottom: var(--sp-4);
}

.proof-list li svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.proof-note {
    font-size: 0.93rem;
    color: var(--slate-light);
    line-height: 1.7;
    margin-bottom: var(--sp-8);
    font-style: italic;
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--navy);
    color: var(--gray-400);
    padding: 0 0 var(--sp-8);
}

.footer-cta {
    background: var(--navy-light);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-xl);
    padding: var(--sp-8) var(--sp-6);
    margin-top: calc(-1 * var(--sp-12));
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-6);
    margin-bottom: var(--sp-12);
}

.footer-cta-text h3 {
    color: var(--white);
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-bottom: var(--sp-2);
}

.footer-cta-text p {
    color: var(--gray-400);
    font-size: 0.95rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-10);
    padding-bottom: var(--sp-10);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    margin-bottom: var(--sp-4);
}

.footer-logo .logo-icon {
    color: var(--accent);
    display: flex;
    align-items: center;
}

.footer-logo .logo-text {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
}

.footer-brand p {
    color: var(--gray-400);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 340px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
}

.footer-column h4 {
    color: var(--gray-200);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--sp-4);
}

.footer-column a {
    display: block;
    color: var(--gray-400);
    font-size: 0.9rem;
    margin-bottom: var(--sp-3);
    transition: color var(--t-fast);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-address {
    display: block;
    color: var(--gray-500);
    font-size: 0.85rem;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--sp-6);
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ===========================
   Scroll offset for fixed nav
   =========================== */
section {
    scroll-margin-top: 72px;
}

/* ===========================
   RESPONSIVE — Tablet & Up
   =========================== */
@media (min-width: 640px) {
    .container {
        padding: 0 var(--sp-8);
    }

    .hero-cta {
        flex-direction: row;
        justify-content: center;
    }

    /* Industry stats */
    .industry-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Problem grid */
    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Features grid */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-card-large {
        grid-column: span 1;
    }

    /* Steps */
    .steps {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--sp-6);
    }

    .step-connector {
        transform: none;
        margin: var(--sp-6) 0 0 0;
    }

    .step-details {
        max-width: 280px;
    }

    /* Tender types */
    .tender-types-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Proof badges */
    .proof-badges {
        grid-template-columns: 1fr 1fr;
    }

    /* Footer */
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-cta {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        padding: var(--sp-8) var(--sp-10);
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-16);
    }

    .hero-content {
        text-align: left;
    }

    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }

    .hero-usp-list {
        justify-content: flex-start;
    }

    .hero-cta {
        justify-content: flex-start;
    }

    .hero {
        padding: calc(64px + var(--sp-16)) 0 var(--sp-16);
    }

    .phone-frame {
        width: 320px;
        height: 640px;
    }

    /* Industry stats 4-col */
    .industry-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Problem 3-col */
    .problem-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Features: 2 large top, 4 small bottom */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-card-large {
        grid-column: span 1;
    }

    /* Steps */
    .step-details {
        max-width: 300px;
    }

    /* Tender types 3-col */
    .tender-types-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Proof */
    .proof-content {
        grid-template-columns: 1.1fr 0.9fr;
        gap: var(--sp-16);
        align-items: center;
    }

    /* Trust badge cards flex direction */
    .trust-badge-card {
        flex-direction: column;
        text-align: center;
        padding: var(--sp-6);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1.3fr 2fr;
    }
}

/* Mobile — hide desktop nav, show hamburger */
@media (max-width: 767px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Floating WhatsApp FAB for mobile */
.whatsapp-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 900;
    width: 60px;
    height: 60px;
    background: var(--whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--whatsapp-shadow), 0 2px 8px rgba(0,0,0,0.15);
    transition: all var(--t-base);
    color: var(--white);
}

.whatsapp-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px var(--whatsapp-shadow);
}

.whatsapp-fab svg {
    width: 32px;
    height: 32px;
}

/* Hide FAB on larger screens where nav CTA is visible */
@media (min-width: 768px) {
    .whatsapp-fab {
        display: none;
    }
}