/* ==========================================================================
   TASKFLOW - MODERN SAAS LANDING PAGE
   A clean, professional CSS framework for portfolio showcase
   ========================================================================== */

/* ==================== CSS VARIABLES ==================== */
:root {
    /* Colors - Primary Palette */
    --color-primary: #6366F1;
    --color-primary-dark: #4F46E5;
    --color-primary-light: #818CF8;
    --color-secondary: #8B5CF6;
    --color-accent: #EC4899;
    
    /* Colors - Gradients */
    --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
    --gradient-hero: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4C1D95 100%);
    --gradient-text: linear-gradient(135deg, #6366F1 0%, #EC4899 100%);
    
    /* Colors - Neutrals */
    --color-white: #FFFFFF;
    --color-black: #0F0F0F;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--leading-normal);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ==================== UTILITY CLASSES ==================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-large {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-600);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    display: none;
}

/* Mobile Toggle */
.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
    z-index: var(--z-fixed);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-gray-700);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.mobile-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: 6rem var(--space-6) var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    z-index: calc(var(--z-fixed) - 1);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.mobile-nav-link {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

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

.mobile-cta {
    margin-top: auto;
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    padding-bottom: var(--space-16);
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -200px;
    animation: float 8s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-secondary);
    bottom: -100px;
    left: -100px;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

.hero-container {
    position: relative;
    z-index: 1;
    display: grid;
    gap: var(--space-12);
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(8px);
}

.badge-icon {
    font-size: var(--font-size-base);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    color: var(--color-white);
    margin-bottom: var(--space-6);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto var(--space-8);
    line-height: var(--leading-relaxed);
}

.hero-cta-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    align-items: center;
    margin-bottom: var(--space-12);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-bold);
    color: var(--color-white);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

.hero-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: float-card 4s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.card-2 {
    bottom: 15%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float-card {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.floating-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
}

.floating-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
}

.floating-card-text {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: none;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-full);
    position: relative;
}

.scroll-wheel {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-full);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(8px); }
}

/* ==================== SECTION HEADERS ==================== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
}

/* ==================== FEATURES SECTION ==================== */
.features {
    padding: var(--space-24) 0;
    background: var(--color-white);
}

.features-grid {
    display: grid;
    gap: var(--space-6);
}

.feature-card {
    padding: var(--space-8);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

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

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
}

.feature-icon {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
}

.feature-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.feature-link:hover svg {
    transform: translateX(4px);
}

/* ==================== ABOUT SECTION ==================== */
.about {
    padding: var(--space-24) 0;
    background: var(--color-gray-50);
}

.about-grid {
    display: grid;
    gap: var(--space-12);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.about-stats-card {
    position: absolute;
    bottom: -2rem;
    right: -1rem;
    padding: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-bold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.about-features {
    margin: var(--space-8) 0;
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: var(--font-size-base);
    color: var(--color-gray-700);
}

.about-feature-check {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.about-feature-check svg {
    width: 14px;
    height: 14px;
}

/* ==================== PRICING SECTION ==================== */
.pricing {
    padding: var(--space-24) 0;
    background: var(--color-white);
}

.pricing-grid {
    display: grid;
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: var(--space-8);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-xl);
}

.pricing-popular {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.popular-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-1) var(--space-4);
    background: var(--gradient-primary);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: var(--font-semibold);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-8);
    padding-top: var(--space-4);
}

.pricing-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.pricing-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-4);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--space-1);
}

.price-currency {
    font-size: var(--font-size-xl);
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
}

.price-amount {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.price-period {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
}

.pricing-features {
    margin-bottom: var(--space-8);
}

.pricing-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

.pricing-feature:last-child {
    border-bottom: none;
}

.feature-check {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
}

/* ==================== TESTIMONIALS SECTION ==================== */
.testimonials {
    padding: var(--space-24) 0;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

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

.testimonials .section-description {
    color: rgba(255, 255, 255, 0.7);
}

.testimonials-grid {
    display: grid;
    gap: var(--space-6);
}

.testimonial-card {
    padding: var(--space-8);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.testimonial-rating {
    display: flex;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
}

.star {
    color: #FBBF24;
    font-size: var(--font-size-lg);
}

.testimonial-text {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.9);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.testimonial-name {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-white);
}

.testimonial-role {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.6);
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    padding: var(--space-24) 0;
    background: var(--color-gray-50);
}

.contact-grid {
    display: grid;
    gap: var(--space-12);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info .section-title {
    text-align: left;
}

.contact-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-medium);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.contact-value {
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
}

.contact-value:hover {
    color: var(--color-primary);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.form-row {
    display: grid;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
    background: var(--color-gray-50);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-400);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    background: var(--color-white);
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input.error,
.form-textarea.error {
    border-color: #EF4444;
}

.form-error {
    display: none;
    font-size: var(--font-size-xs);
    color: #EF4444;
    margin-top: var(--space-1);
}

.form-error.visible {
    display: block;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    position: relative;
}

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-submit.loading .btn-text {
    opacity: 0.7;
}

.btn-submit.loading .btn-loader {
    display: block;
    position: absolute;
}

.form-success {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: rgba(34, 197, 94, 0.1);
    color: #16A34A;
    border-radius: var(--radius-lg);
    margin-top: var(--space-4);
    font-weight: var(--font-medium);
}

.form-success.visible {
    display: flex;
}

.form-success svg {
    width: 24px;
    height: 24px;
}

/* ==================== FOOTER ==================== */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    background: var(--color-gray-900);
    color: var(--color-white);
}

.footer-grid {
    display: grid;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-logo .logo-text {
    color: var(--color-white);
}

.footer-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    line-height: var(--leading-relaxed);
    margin: var(--space-4) 0 var(--space-6);
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--color-gray-400);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-links-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright,
.made-with {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ==================== RESPONSIVE DESIGN ==================== */

/* Tablet (768px and up) */
@media (min-width: 768px) {
    :root {
        --container-padding: 2rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
    
    .hero-description {
        margin-left: 0;
    }
    
    .hero-cta-group {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    .hero-stats {
        justify-content: flex-start;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-popular {
        transform: scale(1.05);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1.2fr;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 2fr repeat(4, 1fr);
    }
    
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    .nav-links {
        display: flex;
    }
    
    .nav-cta {
        display: inline-flex;
    }
    
    .mobile-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none;
    }
    
    .hero-title {
        font-size: var(--font-size-6xl);
    }
    
    .section-title {
        font-size: var(--font-size-4xl);
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .scroll-indicator {
        display: block;
    }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
    :root {
        --container-padding: 2.5rem;
    }
}

/* ==================== ACCESSIBILITY ==================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .navbar,
    .mobile-toggle,
    .mobile-menu,
    .scroll-indicator,
    .hero-bg-decoration,
    .floating-card,
    .btn {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}