/* ========================================
   PROFILIOO - MODERN SAAS NAVBAR & FOOTER
   ======================================== */

/* -------------------- CSS VARIABLES -------------------- */
:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #7c3aed;
    --color-footer-bg: #000000;
    --color-footer-text: #d1d5db;
    --color-footer-heading: #ffffff;
    --color-border: rgba(0, 0, 0, 0.08);
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    --color-hover-bg: rgba(37, 99, 235, 0.05);
    
    /* Gradients */
    --gradient-primary: linear-gradient(90deg, #2563eb, #7c3aed);
    --gradient-border: linear-gradient(90deg, #2563eb, #7c3aed);
    
    /* 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: 2rem;
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* 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;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --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 -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Z-index */
    --z-navbar: 1000;
    --z-mega-menu: 999;
    --z-mobile-menu: 998;
    --z-back-to-top: 100;
    
    /* Navbar */
    --navbar-height: 72px;
    --navbar-height-mobile: 64px;
}

/* -------------------- 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: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

/* -------------------- BUTTONS -------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    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: white;
    box-shadow: var(--shadow-md);
}

.btn--primary:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

.btn--primary:active {
    transform: scale(0.98);
}

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

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

.btn--large {
    padding: var(--space-4) var(--space-6);
    font-size: var(--font-size-base);
}

.btn--full {
    width: 100%;
}

/* -------------------- NAVBAR -------------------- */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100002;
    height: var(--navbar-height);
    transition: all var(--transition-slow);
    background: white;
    overflow: hidden;
}

.navbar--scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
}

.navbar--scrolled::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-border);
    opacity: 0.8;
}

.navbar__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    overflow: hidden;
}

/* Navbar Brand */
.navbar__brand {
    flex-shrink: 0;
}

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

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

.navbar__brand-text {
    font-size: 22px;
    font-weight: var(--font-bold);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

/* Navbar Menu */
.navbar__menu {
    display: none;
    align-items: center;
    gap: var(--space-1);
}

.navbar__item {
    position: relative;
}

.navbar__link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.navbar__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.navbar__link:hover::after,
.navbar__link--active::after {
    width: 70%;
}

.navbar__link:hover {
    color: var(--color-primary);
    background: var(--color-hover-bg);
}

.navbar__chevron {
    font-size: var(--font-size-xs);
    transition: transform var(--transition-base);
}

.navbar__link[aria-expanded="true"] .navbar__chevron {
    transform: rotate(180deg);
}

/* Navbar CTA */
.navbar__cta {
    display: none;
}

/* Mobile Toggle */
.navbar__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 5px;
    border-radius: var(--radius-md);
    transition: background var(--transition-base);
}

.navbar__toggle:hover {
    background: var(--color-hover-bg);
}

.navbar__hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-slow);
    transform-origin: center;
}

.navbar__toggle[aria-expanded="true"] .navbar__hamburger:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar__toggle[aria-expanded="true"] .navbar__hamburger:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar__toggle[aria-expanded="true"] .navbar__hamburger:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* -------------------- MEGA MENU -------------------- */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-slow);
    z-index: var(--z-mega-menu);
    padding-top: var(--space-2);
}

.navbar__item--mega:hover .mega-menu,
.mega-menu--active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.mega-menu__container {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    min-width: 560px;
}

.mega-menu__container--single {
    min-width: 320px;
}

.mega-menu__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    padding: var(--space-4);
}

.mega-menu__column {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mega-menu__column--single {
    gap: var(--space-1);
}

.mega-menu__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.mega-menu__item:hover {
    background: var(--color-hover-bg);
}

.mega-menu__item--coming-soon {
    opacity: 0.6;
    pointer-events: none;
}

.mega-menu__icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    border-radius: var(--radius-md);
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.mega-menu__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mega-menu__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    line-height: 1.4;
}

.mega-menu__desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
    line-height: 1.4;
}

.mega-menu__footer {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.03), rgba(124, 58, 237, 0.03));
}

.mega-menu__browse-all {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.mega-menu__browse-all:hover {
    color: var(--color-primary-dark);
    gap: var(--space-3);
}

/* -------------------- MOBILE MENU -------------------- */
.mobile-menu {
    position: fixed;
    top: var(--navbar-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background: white;
    z-index: var(--z-mobile-menu);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

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

.mobile-menu__container {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-menu__accordion {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.mobile-menu__trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    background: white;
    transition: background var(--transition-base);
}

.mobile-menu__trigger:hover {
    background: var(--color-hover-bg);
}

.mobile-menu__trigger[aria-expanded="true"] {
    background: var(--color-hover-bg);
    color: var(--color-primary);
}

.mobile-menu__chevron {
    transition: transform var(--transition-base);
}

.mobile-menu__trigger[aria-expanded="true"] .mobile-menu__chevron {
    transform: rotate(180deg);
}

.mobile-menu__panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    background: #f9fafb;
}

.mobile-menu__panel--open {
    max-height: 600px;
}

.mobile-menu__link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4) var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.mobile-menu__link:hover {
    background: var(--color-hover-bg);
    color: var(--color-primary);
}

.mobile-menu__link--all {
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    justify-content: space-between;
}

.mobile-menu__item {
    display: flex;
    align-items: center;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    color: var(--color-text);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.mobile-menu__item:hover {
    background: var(--color-hover-bg);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.mobile-menu__cta {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}


/* -------------------- FOOTER -------------------- */
.footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: var(--space-16) var(--space-6) var(--space-6);
}

.footer__container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer__heading {
    font-size: var(--font-size-lg);
    font-weight: var(--font-semibold);
    color: var(--color-footer-heading);
    margin-bottom: var(--space-5);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer__link {
    font-size: var(--font-size-sm);
    color: var(--color-footer-text);
    transition: all var(--transition-base);
    display: inline-block;
}

.footer__link:hover {
    color: white;
    transform: translateX(4px);
}

.footer__socials {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.footer__social {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-footer-text);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.footer__social:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
}

.footer__divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin-bottom: var(--space-6);
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    text-align: center;
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer__back-to-top {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--font-size-base);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.footer__back-to-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.footer__back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.footer__back-to-top:active {
    transform: translateY(-2px);
}

/* -------------------- MEDIA QUERIES -------------------- */

/* Tablet (768px and up) */
@media (min-width: 768px) {
    .navbar__toggle {
        display: none;
    }
    
    .navbar__menu {
        display: flex;
    }
    
    .navbar__cta {
        display: block;
    }
    
    .mobile-menu {
        display: none;
    }
    
    .main-content {
        padding-top: var(--navbar-height);
    }
    
    .hero__title {
        font-size: 3.5rem;
    }
    
    .hero__cta {
        flex-direction: row;
        justify-content: center;
    }
    
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    .features__grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Large Desktop (1280px and up) */
@media (min-width: 1280px) {
    .navbar__container {
        padding: 0 var(--space-10);
    }
}

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

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: rgba(0, 0, 0, 0.3);
    }
    
    .navbar--scrolled {
        background: white;
    }
}

/* Print styles */
@media print {
    .navbar,
    .mobile-menu,
    .footer__back-to-top {
        display: none !important;
    }
    
    .main-content {
        padding-top: 0;
    }
}