/* 
   TecWecTools Premium Design System 
   Theme: Deep Space / Crisp White
   Font: 'Outfit', sans-serif
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Light Theme Variables */
    --bg-light: #f8f9fa;
    --surface-light: #ffffff;
    --text-light: #1a1a1a;
    --text-secondary-light: #666666;
    --border-light: rgba(0, 0, 0, 0.08);

    /* Dark Theme Variables */
    --bg-dark: #0a0b10;
    --surface-dark: #14161f;
    --text-dark: #ffffff;
    --text-secondary-dark: #a0a0a0;
    --border-dark: rgba(255, 255, 255, 0.08);

    /* Brand Colors */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;

    /* Defaults (Light Mode) */
    --bg: var(--bg-light);
    --surface: var(--surface-light);
    --text: var(--text-light);
    --text-secondary: var(--text-secondary-light);
    --border: var(--border-light);
    --shadow: 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);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
}

body.dark {
    --bg: var(--bg-dark);
    --surface: var(--surface-dark);
    --text: var(--text-dark);
    --text-secondary: var(--text-secondary-dark);
    --border: var(--border-dark);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --glass: rgba(20, 22, 31, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    transition: background-color 0.3s ease, color 0.3s ease;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: 0.2s;
}

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

code,
pre {
    font-family: 'JetBrains Mono', monospace;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

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

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

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

/* Theme Toggle */
.theme-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.3s;
}

.theme-btn:hover {
    background: var(--surface);
    border-color: var(--primary);
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    border: none;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
}

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

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Inputs */
input,
select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: 0.2s;
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.w-full {
    width: 100%;
}

.hidden {
    display: none;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Tool Specific Overrides */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.theme-btn:hover {
    background: var(--surface);
    border-color: var(--primary);
}

/* Cards */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    border: none;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
}

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

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Inputs */
input,
select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: 0.2s;
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.w-full {
    width: 100%;
}

.hidden {
    display: none;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Tool Specific Overrides */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}


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

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

/* Inputs */
input,
select,
textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: 0.2s;
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.w-full {
    width: 100%;
}

.hidden {
    display: none;
}

/* Footer */
footer {
    margin-top: auto;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Tool Specific Overrides */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* Dropdown (Desktop) */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--surface);
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    border-radius: 12px;
    z-index: 1000;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0;
    max-height: 60vh;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.dropdown-content::-webkit-scrollbar {
    display: none;
}

.dropdown:hover .dropdown-content {
    display: block;
    animation: fadeIn 0.2s ease-out;
}

.dropdown-item {
    color: var(--text);
    padding: 0.8rem 1.2rem;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
    transition: 0.2s;
    white-space: nowrap;
}

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

.dropdown-category {
    padding: 0.5rem 1.2rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.dropdown-category:first-child {
    margin-top: 0;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .navbar {
        padding: 0.8rem 0;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--surface);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        gap: 0.5rem;
    }

    .nav-links.active {
        display: flex;
        animation: fadeIn 0.2s ease-out;
    }

    .nav-link:hover {
        background: var(--bg);
    }

    .dropdown {
        width: 100%;
    }

    .dropdown-content {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 1rem;
    }

    .tool-header {
        padding: 1.5rem 0;
        margin-bottom: 1.5rem;
    }

    .tool-header h1 {
        font-size: 1.8rem;
    }

    input,
    select,
    textarea,
    button {
        font-size: 16px;
    }

    .card {
        padding: 1rem;
    }
}