/* ==========================================================================
   iLovePDF Design System & Custom Styles
   ========================================================================== */

:root {
    --primary-red: #E5322D;
    --primary-red-hover: #D0241F;
    --text-dark: #161616;
    --text-muted: #4A4A4A;
    --text-light: #707070;
    --bg-light: #F4F5F8;
    --bg-white: #FFFFFF;
    --border-color: #E2E4E9;
    --footer-bg-dark: #1F2229;
    --footer-text-gray: #A0A5B5;
    --shadow-dropdown: 0 16px 36px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.04);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

body {
    background-color: #FAFAFC;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.header {
    background-color: var(--bg-white);
    height: 68px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Brand Logo */
.brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    user-select: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.heart-svg {
    width: 32px;
    height: 32px;
    transition: transform 0.2s ease;
}

.brand-logo:hover .heart-svg {
    transform: scale(1.08);
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-text-i {
    color: var(--text-dark);
}

.logo-text-love {
    color: var(--primary-red);
    font-weight: 900;
}

.logo-text-pdf {
    color: var(--text-dark);
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    height: 100%;
    gap: 4px;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 0 16px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.15s ease;
}

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

.caret-icon {
    font-size: 10px;
    transition: transform 0.2s ease;
    color: #888;
}

.nav-item:hover .caret-icon {
    transform: rotate(180deg);
    color: var(--primary-red);
}

/* Dropdown Menus */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    gap: 30px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1100;
}

.convert-menu {
    width: 580px;
}

.dropdown-trigger:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dropdown-header {
    font-size: 11px;
    font-weight: 800;
    color: var(--text-light);
    letter-spacing: 1px;
    margin-bottom: 8px;
    padding-left: 8px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background-color 0.15s ease;
}

.dropdown-item:hover {
    background-color: var(--bg-light);
}

.dropdown-item i {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.icon-jpg { color: #E5322D; }
.icon-word { color: #2B579A; }
.icon-ppt { color: #D24726; }
.icon-excel { color: #217346; }
.icon-html { color: #E44D26; }
.icon-pdfa { color: #4A4A4A; }

.dropdown-item div {
    display: flex;
    flex-direction: column;
}

.dropdown-item strong {
    font-size: 13px;
    color: var(--text-dark);
    font-weight: 700;
}

.dropdown-item span {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 2px;
}

/* Mega Menu */
.mega-dropdown-trigger {
    position: static;
}

.mega-menu {
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-dropdown);
    padding: 32px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 1100;
}

.mega-dropdown-trigger:hover .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mega-menu-grid {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
}

.mega-column h4 {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.8px;
    color: var(--primary-red);
    margin-bottom: 14px;
}

.mega-column h4.sub-heading {
    margin-top: 24px;
}

.mega-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mega-column a {
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.15s ease, transform 0.15s ease;
}

.mega-column a:hover {
    color: var(--primary-red);
    transform: translateX(3px);
}

.mega-column a i {
    width: 16px;
    color: var(--text-light);
    font-size: 14px;
}

.mega-column a:hover i {
    color: var(--primary-red);
}

/* Header Action Buttons */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.action-btn {
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.btn-login {
    color: var(--text-dark);
    background: transparent;
}

.btn-login:hover {
    color: var(--primary-red);
}

.btn-signup {
    background-color: var(--primary-red);
    color: #FFFFFF;
}

.btn-signup:hover {
    background-color: var(--primary-red-hover);
    box-shadow: 0 4px 12px rgba(229, 50, 45, 0.25);
}

.icon-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: var(--text-dark);
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.15s ease;
}

.icon-btn:hover {
    background-color: var(--bg-light);
    color: var(--primary-red);
}

.current-lang {
    font-size: 12px;
    font-weight: 700;
}

/* Language Dropdown Menu */
.language-dropdown {
    position: relative;
}

.lang-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-dropdown);
    border-radius: var(--radius-sm);
    width: 170px;
    padding: 8px 0;
    display: none;
    flex-direction: column;
    z-index: 1200;
}

.language-dropdown:hover .lang-menu {
    display: flex;
}

.lang-item {
    padding: 8px 16px;
    text-decoration: none;
    font-size: 13px;
    color: var(--text-dark);
    font-weight: 500;
    transition: background 0.15s ease;
}

.lang-item:hover, .lang-item.active {
    background-color: var(--bg-light);
    color: var(--primary-red);
    font-weight: 700;
}

/* Mobile Toggle & Drawer */
.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 20px;
    color: var(--text-dark);
    cursor: pointer;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--bg-white);
    z-index: 2000;
    box-shadow: -5px 0 25px rgba(0,0,0,0.15);
    transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}

.mobile-drawer.open {
    right: 0;
}

.drawer-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.close-drawer {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
}

.drawer-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.drawer-link {
    text-decoration: none;
    color: var(--text-dark);
    font-size: 15px;
    font-weight: 700;
}

.drawer-divider {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

.signup-highlight {
    color: var(--primary-red);
}

/* ==========================================================================
   MAIN MIDDLE SECTION - BLANK WORKSPACE CANVAS
   ========================================================================== */

.main-content-blank {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 68px - 300px);
    background-color: #F7F8FA;
    background-image: radial-gradient(#E2E4E9 1px, transparent 1px);
    background-size: 24px 24px;
    padding: 60px 20px;
}

.blank-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    justify-content: center;
}

.blank-workspace {
    width: 100%;
    height: 480px;
    background: var(--bg-white);
    border: 2px dashed #D1D5DB;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.blank-workspace:hover {
    border-color: var(--primary-red);
    box-shadow: 0 8px 30px rgba(229, 50, 45, 0.08);
}

.workspace-watermark {
    text-align: center;
    user-select: none;
}

.watermark-icon {
    font-size: 48px;
    color: #D1D5DB;
    margin-bottom: 12px;
}

.blank-workspace:hover .watermark-icon {
    color: var(--primary-red);
}

.watermark-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 2px;
    color: #9CA3AF;
    margin-bottom: 8px;
}

.watermark-subtext {
    font-size: 14px;
    color: #6B7280;
    font-weight: 500;
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */

.footer {
    background-color: var(--bg-white);
    border-top: 1px solid var(--border-color);
}

.footer-top {
    padding: 50px 0 40px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-col h3 {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-dark);
    margin-bottom: 18px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    text-decoration: none;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.15s ease;
}

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

/* Footer Bottom */
.footer-bottom {
    background-color: var(--footer-bg-dark);
    padding: 24px 0;
    color: var(--footer-text-gray);
}

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

.copyright-info span {
    font-size: 13px;
    font-weight: 500;
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: 16px;
}

.social-icon {
    color: var(--footer-text-gray);
    font-size: 16px;
    text-decoration: none;
    transition: color 0.15s ease, transform 0.15s ease;
}

.social-icon:hover {
    color: #FFFFFF;
    transform: translateY(-2px);
}

.store-badges {
    display: flex;
    align-items: center;
    gap: 12px;
}

.badge-link {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
    text-decoration: none;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    transition: background 0.15s ease;
}

.badge-link:hover {
    background-color: rgba(255, 255, 255, 0.18);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

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

@media (max-width: 640px) {
    .header-container {
        padding: 0 16px;
    }

    .btn-login {
        display: none;
    }

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

    .bottom-container {
        flex-direction: column;
        align-items: flex-start;
    }
}