/* public/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
    /* Premium Color Palette - Designer Curated HSL Tokens */
    --primary: hsl(18, 92%, 55%);         /* Vibrant Tech Coral-Orange */
    --primary-hover: hsl(18, 92%, 48%);
    --primary-light: hsl(18, 100%, 97%);  /* Warm Creamy Ivory Orange tint */
    --primary-glow: hsla(18, 92%, 55%, 0.15);
    
    --secondary: hsl(215, 25%, 27%);       /* Premium Deep Slate Charcoal */
    --secondary-hover: hsl(215, 25%, 20%);
    --secondary-light: hsl(215, 25%, 96%);

    --bg-color: #f4f5f7;                  /* LinkedIn Soft Gray Canvas */
    --card-bg: #ffffff;
    --text-main: hsl(218, 23%, 12%);      /* Deep Charcoal for professional contrast */
    --text-muted: hsl(215, 16%, 43%);     /* Soft Slate for secondary description text */
    --text-light: hsl(215, 16%, 60%);     /* Subtle placeholder / metadata */

    --border: #e2e8f0;                    /* Crisp solid light border */
    --border-hover: #cbd5e1;

    --danger: hsl(360, 82%, 60%);
    --danger-light: hsl(360, 100%, 97%);
    --success: hsl(150, 84%, 37%);
    --success-light: hsl(150, 100%, 97%);
    --warning: hsl(38, 92%, 50%);
    --warning-light: hsl(38, 100%, 97%);

    /* Shadows & Elevation - Advanced Depth Layering */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.02);
    --shadow: 0 4px 12px rgba(0,0,0,0.05);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.08);
    --shadow-glow: 0 0 0 4px hsla(18, 92%, 55%, 0.15);
    --shadow-glow-secondary: 0 0 0 4px rgba(30, 33, 38, 0.08);

    /* Spacing System */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3.5rem;
    --space-3xl: 6rem;

    /* Advanced Bezier Transitions */
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);

    /* Compact Border Radius System (LinkedIn Aesthetics) */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

/* Base Styles - Mobile First Reset */
* {
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Plus Jakarta Sans', 'Prompt', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    line-height: 1.6;
    padding-bottom: 90px; /* Space for elegant mobile bottom nav */
}

@media (min-width: 768px) {
    body {
        padding-bottom: 0;
    }
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
}

/* Premium Typography System */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', 'Prompt', sans-serif;
    color: var(--text-main);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.25;
    margin: 0;
}

h1 { font-size: clamp(2.25rem, 6vw, 3.75rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.15rem; font-weight: 700; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
}

/* Navigation Header - Premium LinkedIn Style (Thin & Sticky) */
.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 54px; /* Thin and high-fidelity height */
    display: flex;
    align-items: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    transition: var(--transition-fast);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1128px; /* Classic centered container max-width */
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.nav-links {
    display: none;
    align-items: center;
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

.logo img {
    height: 32px !important; /* Perfect slim size */
    width: auto;
    border-radius: 0;
}

/* Dropdowns Redefined with Apple-like Glass design */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    min-width: 240px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    z-index: 1001;
    padding: 0.6rem;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    transform: translateY(10px);
    opacity: 0;
    transition: var(--transition);
}

.dropdown-content::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    right: 0;
    height: 15px;
    background: transparent;
}

.dropdown:hover .dropdown-content {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

.dropdown-content a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-main);
    padding: 0.8rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.dropdown-content a:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

.dropdown-content a i {
    font-size: 1.1rem;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 2px 10px;
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 700;
    min-width: 76px;
    height: 54px;
    border-radius: 0;
    transition: var(--transition-fast);
    position: relative;
    text-decoration: none;
    text-transform: none;
    letter-spacing: normal;
}

.nav-item i {
    font-size: 1.15rem;
    transition: var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-main);
    background: transparent;
}

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

/* Active navigation border-bottom */
.nav-item.active {
    color: var(--text-main);
}

.nav-item.active i {
    color: var(--primary);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

/* LinkedIn Pill Buttons for Auth */
.nav-item-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.nav-item-btn.primary {
    background-color: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.nav-item-btn.primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.nav-item-btn.secondary {
    background-color: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

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

/* Visibility Utilities */
.hidden-mobile {
    display: none !important;
}

@media (min-width: 768px) {
    .hidden-mobile {
        display: flex !important;
    }
    .hidden-desktop {
        display: none !important;
    }
}

/* Global Layout Utilities */
.sidebar-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

@media (min-width: 1024px) {
    .sidebar-layout {
        grid-template-columns: 300px 1fr;
    }
}

.card-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
    gap: var(--space-xl);
}

@media (max-width: 640px) {
    .card-gallery {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
}

/* Beautiful Premium Card System */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-lg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.02);
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* Interactive Sleek Buttons with Micro-interactions */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-full);
    font-weight: 800;
    font-size: 0.95rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

@media (min-width: 768px) {
    .btn { width: auto; }
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, hsl(18, 92%, 62%) 100%);
    color: white;
    box-shadow: 0 8px 20px -6px hsla(18, 92%, 55%, 0.4);
}

.btn-primary:hover {
    box-shadow: 0 12px 28px -4px hsla(18, 92%, 55%, 0.5);
    background: linear-gradient(135deg, hsl(18, 92%, 48%) 0%, var(--primary) 100%);
}

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

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

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

/* Premium Interactive Forms & Universal Inputs - Tighter & LinkedIn Polished */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    text-align: left;
}

.form-label,
.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-main);
    margin-bottom: var(--space-xs);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="tel"],
input[type="file"],
textarea,
select,
.input,
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: 'Prompt', 'Plus Jakarta Sans', sans-serif;
    color: var(--text-main);
    background-color: #fafbfc;
    transition: var(--transition-fast);
    box-sizing: border-box;
}

input[type="file"] {
    background-color: white;
    padding: 0.5rem;
    font-size: 0.88rem;
}

textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
}

input[type="checkbox"],
input[type="radio"] {
    width: auto !important;
    display: inline-block;
    cursor: pointer;
    accent-color: var(--primary);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus,
.input:focus,
.form-input:focus {
    border-color: var(--primary);
    background-color: white;
    outline: none;
    box-shadow: var(--shadow-glow);
}

/* Premium Navigation Tabs */
.tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.tab-link {
    padding: 0.75rem 1.25rem;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.95rem;
    border-bottom: 3px solid transparent;
    transition: var(--transition-fast);
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

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

.tab-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Bottom Floating Navigation Bar - Mobile Only (Frosted Glass Panel) */
.bottom-nav {
    position: fixed;
    bottom: 24px;
    left: 20px;
    right: 20px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 14px 20px;
    box-shadow: 0 20px 48px rgba(0,0,0,0.3);
    z-index: 2000;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
    .bottom-nav { display: none; }
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    font-size: 0.72rem;
    font-weight: 700;
    gap: 4px;
    opacity: 0.65;
    transition: var(--transition-fast);
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
    opacity: 1;
    color: var(--primary);
}

.bottom-nav-item i {
    font-size: 1.3rem;
}

/* Premium Badges & Status Indicators */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-hot {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.15);
}

.badge-verified {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.badge-general {
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid rgba(242, 92, 29, 0.15);
}

.badge-notify {
    position: absolute;
    top: -2px;
    right: -2px;
    background: var(--danger);
    color: white;
    border-radius: var(--radius-full);
    min-width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 800;
    border: 2px solid white;
}

/* Stunning Hero & Header Sections */
.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -150px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, hsla(18, 92%, 55%, 0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    max-width: 860px;
    margin: 0 auto;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

@media (min-width: 768px) {
    .hero-actions {
        flex-direction: row;
        justify-content: center;
        gap: var(--space-md);
    }
}

/* Standard Section Spacing */
section {
    padding: var(--space-2xl) 0;
    position: relative;
}

section:nth-of-type(even) {
    background-color: white;
}

section:nth-of-type(odd) {
    background-color: var(--bg-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Beautiful Grids */
.grid {
    display: grid;
    gap: var(--space-lg);
}

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

@media (min-width: 768px) {
    .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Auth Pages Container */
.auth-container {
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) var(--space-md);
}

.auth-card {
    width: 100%;
    max-width: 460px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }