/* 
   The Quad Flow Landing Page Styles
   Mobile-first approach with premium visual design
*/

:root {
    --primary-blue: #3E82F7;
    --primary-blue-dark: #2563EB;
    --primary-blue-light: #60A5FA;
    --accent-orange: #F5A623;
    --accent-orange-light: #FBBF24;
    --growth-green: #58D68D;
    --sky-tint: #E0F2FE;
    --slate-gray: #64748B;
    --off-white: #F8FAFC;
    --white: #FFFFFF;
    --black: #0F172A;
    --gray-light: #E2E8F0;
    --gray-medium: #CBD5E1;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    --shadow-blue: 0 8px 30px rgba(62, 130, 247, 0.3);
    --shadow-orange: 0 8px 30px rgba(245, 166, 35, 0.3);
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --font-header: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--black);
    line-height: 1.7;
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-header);
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--black) 0%, var(--slate-gray) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title + p {
    text-align: center;
    color: var(--slate-gray);
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(62, 130, 247, 0.4);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

.btn-text {
    color: var(--primary-blue);
    font-weight: 600;
    padding: 0.5rem 0;
}

.btn-text:hover {
    color: var(--primary-blue-dark);
}

.btn-outline {
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue);
}

/* Navbar */
.navbar {
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary-blue);
}

.logo img {
    border-radius: 8px;
}

.nav-links {
    display: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--slate-gray);
    position: relative;
}

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

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

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

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--off-white);
}

.mobile-menu-toggle .bar {
    width: 24px;
    height: 2.5px;
    background-color: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 5rem 0 6rem;
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(62, 130, 247, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 2.75rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--black) 0%, var(--slate-gray) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subheadline {
    font-size: 1.2rem;
    color: var(--slate-gray);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.cta-subtext {
    font-size: 0.875rem;
    color: var(--slate-gray);
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-subtext::before {
    content: '✓';
    color: var(--growth-green);
    font-weight: 700;
}

.social-proof {
    font-size: 0.9rem;
    color: var(--slate-gray);
    padding: 1.25rem;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--gray-light);
    display: inline-block;
}

.stats {
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
    margin-top: 0.25rem;
}

/* Matrix Mockup Styles */
.hero-visual {
    margin-top: 3rem;
    position: relative;
    z-index: 1;
}

.matrix-mockup {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 12px;
    background: linear-gradient(145deg, var(--white) 0%, var(--off-white) 100%);
    padding: 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-light);
    position: relative;
}

.matrix-mockup::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: linear-gradient(135deg, var(--primary-blue-light), var(--accent-orange-light));
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.quadrant {
    background: var(--white);
    padding: 1.25rem;
    border-radius: var(--radius);
    min-height: 160px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.quadrant:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.quad-header {
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--gray-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quad-header::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.urgent-important .quad-header { color: var(--accent-orange); }
.urgent-important .quad-header::before { background: var(--accent-orange); }
.important-not-urgent .quad-header { color: var(--primary-blue); }
.important-not-urgent .quad-header::before { background: var(--primary-blue); }
.urgent-not-important .quad-header { color: var(--slate-gray); }
.urgent-not-important .quad-header::before { background: var(--slate-gray); }
.not-urgent-not-important .quad-header { color: var(--gray-medium); }
.not-urgent-not-important .quad-header::before { background: var(--gray-medium); }

.task-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.task {
    font-size: 0.85rem;
    padding: 10px 12px;
    background: var(--off-white);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.task:hover {
    border-color: var(--gray-light);
    background: var(--white);
}

.tag {
    font-size: 0.65rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: 3px 8px;
    border-radius: 20px;
    width: fit-content;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.task.faded {
    opacity: 0.4;
    text-decoration: line-through;
}

/* Trust Strip */
.trust-strip {
    padding: 4rem 0;
    background: linear-gradient(to right, var(--white), var(--sky-tint), var(--white));
    text-align: center;
    border-top: 1px solid rgba(62, 130, 247, 0.05);
    border-bottom: 1px solid rgba(62, 130, 247, 0.05);
    position: relative;
}

.trust-strip .container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2.5rem 4rem;
}

.logo-placeholder {
    font-family: var(--font-header);
    font-weight: 700;
    color: var(--slate-gray);
    opacity: 0.4;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
    cursor: default;
}

.logo-placeholder:hover {
    opacity: 0.8;
    color: var(--primary-blue);
    transform: scale(1.05);
}

.trust-stats {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

.trust-stat-item {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition);
}

.trust-stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    background: var(--white);
}

.trust-stat-item p {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--slate-gray);
    margin: 0;
}

.trust-stat-item .stat-icon {
    color: var(--growth-green);
    font-size: 1.1rem;
}

@media (min-width: 768px) {
    .trust-strip {
        padding: 5rem 0;
    }
    
    .trust-stats {
        flex-direction: row;
        gap: 2rem;
    }
}

/* Problem Section */
.problem {
    padding: 6rem 0;
    background: var(--white);
}

.pain-points {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.pain-item {
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--off-white) 100%);
    border-left: 4px solid var(--accent-orange);
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.pain-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow);
}

.pain-item p {
    color: var(--slate-gray);
    font-size: 1.05rem;
}

/* Solution Section */
.solution {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
    position: relative;
}

.value-prop {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    font-size: 1.15rem;
    color: var(--slate-gray);
    line-height: 1.8;
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

.step {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-light);
}

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

.step-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: var(--shadow-blue);
}

.step h3 {
    color: var(--black);
    margin-bottom: 0.75rem;
}

.step p {
    color: var(--slate-gray);
    font-size: 0.95rem;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem 2rem;
    background: linear-gradient(145deg, var(--white) 0%, var(--off-white) 100%);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.25rem;
    display: block;
}

.feature-card h3 {
    color: var(--black);
    margin-bottom: 0.75rem;
}

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

/* Pricing Section */
.pricing {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.price-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--gray-light);
    position: relative;
    transition: var(--transition);
}

.price-card:hover {
    box-shadow: var(--shadow-lg);
}

.price-card.popular {
    border: 2px solid var(--primary-blue);
    box-shadow: var(--shadow-blue);
    transform: scale(1);
    z-index: 1;
}

.price-card.popular::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.1;
}

.badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    box-shadow: var(--shadow-blue);
}

.price-card h3 {
    color: var(--slate-gray);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--black);
}

.price span {
    font-size: 1rem;
    color: var(--slate-gray);
    font-weight: 500;
}

.price-features {
    margin-bottom: 2rem;
    text-align: left;
}

.price-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--slate-gray);
}

.price-features li::before {
    content: "✓";
    color: var(--growth-green);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.best-for {
    margin-top: 1.75rem;
    font-size: 0.85rem;
    color: var(--slate-gray);
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-light);
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--gray-light);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-blue-light);
}

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

.faq-question {
    width: 100%;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    border: none;
    text-align: left;
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    color: var(--black);
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--off-white);
}

.faq-question .icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--off-white);
    border-radius: 50%;
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 1.2rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item.active .faq-question .icon {
    background: var(--primary-blue);
    color: var(--white);
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    display: none;
    color: var(--slate-gray);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Final CTA */
.final-cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(10%, 10%); }
}

.final-cta .container {
    position: relative;
    z-index: 1;
}

.final-cta h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.final-cta p {
    margin-bottom: 2.5rem;
    font-size: 1.15rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
    line-height: 1.8;
}

.cta-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.final-cta .btn-primary {
    background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-orange-light) 100%);
    color: var(--black);
    box-shadow: var(--shadow-orange);
    font-weight: 700;
}

.final-cta .btn-primary:hover {
    box-shadow: 0 12px 35px rgba(245, 166, 35, 0.5);
}

.risk-reversal {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Footer */
.footer {
    padding: 5rem 0 2rem;
    background: var(--off-white);
    border-top: 1px solid var(--gray-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.footer-info .logo {
    margin-bottom: 1.25rem;
}

.footer-info p {
    color: var(--slate-gray);
    font-size: 0.95rem;
}

.copyright {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-light);
    font-size: 0.875rem;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.link-group h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
    color: var(--black);
}

.link-group a {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--slate-gray);
}

.link-group a:hover {
    color: var(--primary-blue);
    transform: translateX(4px);
}

/* Responsive Queries */
@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: none;
    }

    .hero {
        padding: 6rem 0 8rem;
    }

    .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 5rem;
        align-items: center;
    }

    .hero-content h1 {
        font-size: 3.25rem;
    }

    .hero-visual {
        margin-top: 0;
    }

    .hero-ctas {
        flex-direction: row;
        align-items: center;
    }

    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        align-items: stretch;
    }

    .price-card.popular {
        transform: scale(1.05);
    }

    .footer-grid {
        grid-template-columns: 1fr 2fr;
    }

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

@media (min-width: 1024px) {
    .section-title {
        font-size: 2.75rem;
    }

    .hero-content h1 {
        font-size: 3.5rem;
    }

    .final-cta h2 {
        font-size: 2.75rem;
    }
}

/* Scroll animations */
@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .step,
    .price-card,
    .pain-item {
        opacity: 1;
    }
}