/* ================================================================
   PC-Pick DSS — Global Styles
   ================================================================ */

/* ---------- RESET & BASE ---------- */
:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #DBEAFE;
    --accent-coral: #F97066;
    --accent-green: #22C55E;
    --accent-purple: #8B5CF6;
    --dark: #0F172A;
    --dark-muted: #1E293B;
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-500: #6B7280;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ---------- NAVBAR ---------- */
#mainNavbar {
    background: #0f172a;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

#mainNavbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.brand-icon {
    font-size: 1.4rem;
    color: var(--primary);
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.02em;
}

.navbar-nav .nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: #FFFFFF;
    padding: 8px 16px !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-user-greeting {
    font-size: 0.875rem;
    color: var(--gray-100);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-user-greeting i {
    color: var(--primary-light);
}

.btn-nav-login {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-nav-login:hover {
    border-color: var(--white);
    color: var(--dark);
    background: var(--white);
}

.btn-nav-logout {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    color: var(--gray-300);
    background: transparent;
    transition: var(--transition);
    text-decoration: none;
}

.btn-nav-logout:hover {
    border-color: var(--accent-coral);
    color: var(--accent-coral);
}

.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 10px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ---------- HERO SECTION ---------- */
.hero-section {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 50%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    padding-right: 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero-highlight {
    background: linear-gradient(135deg, var(--primary), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 520px;
}

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

.btn-hero-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-hero-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
    color: var(--white);
}

.btn-hero-primary i {
    transition: transform 0.3s;
}

.btn-hero-primary:hover i {
    transform: translateX(4px);
}

.btn-hero-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
}

.btn-hero-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: visible;
}

.hero-image {
    width: 100%;
    max-width: 520px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

.hero-float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-700);
    animation: cardPulse 4s ease-in-out infinite;
}

.card-efficiency {
    bottom: 30px;
    left: -20px;
    animation-delay: 0s;
}

.card-efficiency i {
    color: var(--accent-green);
    font-size: 1rem;
}

.card-analysis {
    top: 30px;
    right: -10px;
    animation-delay: 2s;
}

.card-analysis i {
    color: var(--primary);
    font-size: 1rem;
}

@keyframes cardPulse {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

/* ---------- METHODOLOGY SECTION ---------- */
.methodology-section {
    padding: 80px 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.method-intro {
    padding-right: 40px;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.text-primary-custom {
    color: var(--primary);
}

.method-description {
    font-size: 0.95rem;
    color: var(--gray-500);
    line-height: 1.7;
}

.method-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
    height: 100%;
}

.method-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.method-card.card-highlighted {
    background: var(--white);
    border-color: var(--white);
    color: var(--white);
}

.method-card.card-highlighted h4 {
    color: var(--white);
}

.method-card.card-highlighted p {
    color: var(--gray-300);
}

.method-card-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.icon-blue {
    background: var(--primary-light);
    color: var(--primary);
}

.icon-coral {
    background: rgba(249, 112, 102, 0.15);
    color: var(--accent-coral);
}

.icon-green {
    background: rgba(34, 197, 94, 0.12);
    color: var(--accent-green);
}

.icon-purple {
    background: rgba(139, 92, 246, 0.12);
    color: var(--accent-purple);
}

.method-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.method-card p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 0;
    line-height: 1.6;
}

/* ---------- STEPS SECTION ---------- */
.steps-section {
    padding: 80px 0;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

.section-header {
    margin-bottom: 48px;
}

.section-header .section-title {
    margin-bottom: 8px;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--gray-500);
}

.step-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.step-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.step-number span {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    text-transform: uppercase;
}

.step-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 16px auto;
    font-size: 1.3rem;
}

.step-icon.icon-red {
    background: rgba(249, 112, 102, 0.12);
    color: var(--accent-coral);
}

.step-icon.icon-green {
    background: rgba(34, 197, 94, 0.12);
    color: var(--accent-green);
}

.step-icon.icon-blue {
    background: var(--primary-light);
    color: var(--primary);
}

.step-icon.icon-purple {
    background: rgba(139, 92, 246, 0.12);
    color: var(--accent-purple);
}

.step-card h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 0;
    line-height: 1.5;
}

/* ---------- CTA SECTION ---------- */
.cta-section {
    padding: 80px 0;
    background: var(--white);
}

.cta-box {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-muted) 100%);
    border-radius: var(--radius-xl);
    padding: 64px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -30%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-box::after {
    content: '';
    position: absolute;
    bottom: -40%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-box h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.cta-box p {
    font-size: 1rem;
    color: var(--gray-300);
    max-width: 480px;
    margin: 0 auto 28px;
    position: relative;
    z-index: 1;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
    position: relative;
    z-index: 1;
}

.btn-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.5);
    color: var(--white);
}

/* ---------- FOOTER ---------- */
.site-footer {
    background: #ffffff;
    border-top: 1px solid var(--gray-200);
    padding: 32px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.footer-brand i {
    color: var(--primary);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--gray-200);
    padding-top: 16px;
    text-align: center;
}

.footer-bottom small {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 991.98px) {
    .hero-section {
        padding: 60px 0 40px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
        text-align: center;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        padding: 0 20px;
    }

    .hero-float-card.card-efficiency {
        left: 10px;
    }

    .hero-float-card.card-analysis {
        right: 10px;
    }

    .method-intro {
        padding-right: 0;
        margin-bottom: 32px;
    }

    .navbar-collapse {
        background: var(--white);
        border-radius: var(--radius-md);
        padding: 16px;
        margin-top: 8px;
        box-shadow: var(--shadow-lg);
    }

    .nav-auth {
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid var(--gray-200);
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .cta-box h2 {
        font-size: 1.6rem;
    }

    .hero-float-card {
        display: none;
    }

    .step-card {
        padding: 24px 16px;
    }
}

/* ---------- UTILITY / ANIMATIONS ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll-triggered animations via IntersectionObserver */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}