/**
 * TepeTool E-Commerce - Design System CSS
 * Mobile-First Responsive Styles
 */

/* ================================================
   FONTS & CSS VARIABLES
   ================================================ */
@import url('https://fonts.googleapis.com/css2?family=Abel&family=Lato:wght@300;400;700&display=swap');

:root {
    /* Typography */
    --font-headline: 'Abel', sans-serif;
    --font-body: 'Lato', sans-serif;

    /* Color System */
    --white: #FFFFFF;
    --grey-100: #FAFAFA;
    --grey-200: #F5F5F5;
    --grey-300: #E0E0E0;
    --grey-400: #BDBDBD;
    --grey-500: #9E9E9E;
    --grey-600: #757575;
    --grey-700: #c9c9c9;
    --grey-800: #e2e2e2;
    --grey-900: #212121;
    --accent: #D32F2F;
    --accent-dark: #B71C1C;
    --success: #4CAF50;
    --warning: #FF9800;
    --error: #F44336;
    --info: #2196F3;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Shadows */
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-modal: 0 8px 32px rgba(0, 0, 0, 0.15);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: black;
    line-height: 1.6;
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================================================
   TYPOGRAPHY
   ================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-headline);
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--grey-800);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

/* Mobile-first font sizes */
h1 {
    font-size: 1.75rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.125rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.875rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

/* ================================================
   LAYOUT
   ================================================ */
.container {
    width: 100%;
    padding: 0 var(--spacing-md);
    margin: 0 auto;
}

.section {
    padding: var(--spacing-lg) 0;
}

.section-grey {
    background-color: var(--grey-200);
}

/* ================================================
   BUTTONS
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-headline);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 44px;
    color: white;
    /* Touch-friendly */
}

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

.btn-close {
    color: white !important;
}


.btn-primary:hover {
    background-color: var(--accent-dark);
    box-shadow: var(--shadow-elevated);
}

.btn-secondary {
    background-color: white;
    color: black;
}

.btn-secondary:hover {
    background-color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--grey-800);
    border: 1px solid var(--grey-300);
}

.btn-outline:hover {
    border-color: var(--grey-800);
    background-color: var(--grey-100);
    color: #212121;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ================================================
   FORMS
   ================================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: rgb(0, 0, 0);
    margin-bottom: var(--spacing-xs);
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: rgb(255, 255, 255);
    background-color: #1e2433;
    border: 1px solid var(--grey-300);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    min-height: 44px;
    /* Touch-friendly */
}

.form-control:focus {
    outline: none;
    border-color: #9fa6b2;
    color: #000000;
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}



.form-control::placeholder {
    color: var(--grey-500);
}

.form-control.is-invalid {
    border-color: var(--error);
}

.form-text {
    font-size: 0.75rem;
    color: var(--grey-500);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: 0.75rem;
    color: var(--error);
    margin-top: var(--spacing-xs);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-top: 3px;
    accent-color: var(--accent);
}

.form-check-label {
    font-size: 0.875rem;
    color: rgb(255, 255, 255);
}

/* ================================================
   CARDS
   ================================================ */
.card {

    border: 1px solid var(--grey-300);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
}

.card-body {
    padding: var(--spacing-md);
}

.card-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--grey-200);
    background-color: var(--grey-100);
}

.card-title {
    font-size: 1.125rem;
    margin-bottom: 0;
}

/* ================================================
   ALERTS
   ================================================ */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #A5D6A7;
}

.alert-error {
    background-color: #FFEBEE;
    color: #C62828;
    border: 1px solid #EF9A9A;
}

.alert-warning {
    background-color: #FFF3E0;
    color: #EF6C00;
    border: 1px solid #FFCC80;
}

.alert-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border: 1px solid #90CAF9;
}

/* ================================================
   NAVIGATION
   ================================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--white);
    border-bottom: 1px solid var(--grey-200);
    padding: var(--spacing-md) 0;
}

.navbar-brand {
    font-family: var(--font-headline);
    font-size: 1.5rem;
    letter-spacing: 3px;
    color: var(--grey-800);
    text-transform: uppercase;
}

.navbar-nav {
    display: none;
    list-style: none;
}

.nav-link {
    font-family: var(--font-headline);
    font-size: 0.875rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: black;
    padding: var(--spacing-sm) var(--spacing-md);
}

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

/* Hamburger Menu */
.navbar-toggler {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.navbar-toggler span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--grey-800);
    transition: var(--transition-normal);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--white);
    box-shadow: var(--shadow-modal);
    z-index: 1001;
    transition: left var(--transition-slow);
    padding: var(--spacing-lg);
}

.mobile-menu.open {
    left: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Cart Badge */
.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--accent);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    border-radius: var(--radius-full);
    padding: 2px 6px;
    min-width: 18px;
    text-align: center;
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--white);
    border: 1px solid var(--grey-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-elevated);
    min-width: 180px;
    z-index: 100;
}

.user-dropdown a {
    display: block;
    padding: 12px 16px;
    color: black;
    font-size: 0.875rem;
    transition: background-color var(--transition-fast);
    border-bottom: 1px solid var(--grey-100);
}

.user-dropdown a:last-child {
    border-bottom: none;
}

.user-dropdown a:hover {
    background-color: var(--grey-100);
    color: var(--accent);
}

/* ================================================
   AUTH PAGES (Login/Register)
   ================================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #0f1115;
    /* Dark background */
    color: black;
}

.auth-page .form-label {
    color: var(--white) !important;
}

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: #161b22;
    /* Darker card background */
    border: 1px solid #30363d;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    padding: var(--spacing-xl);
}

.auth-logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo h1 {
    font-size: 2rem;
    letter-spacing: 4px;
    margin-bottom: 0;
    color: var(--grey-800);
}

.auth-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.auth-title h4 {
    color: var(--grey-800);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--grey-600);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    color: var(--grey-500);
    font-size: 0.75rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: #30363d;
}

.auth-card .alert-info {
    background-color: rgba(33, 150, 243, 0.1);
    color: #64b5f6;
    border-color: rgba(33, 150, 243, 0.2);
}

/* Auth Page Responsive */
@media (max-width: 576px) {
    .auth-container {
        padding: var(--spacing-md);
        align-items: flex-start;
        /* Better for tall forms on mobile so they scroll */
        padding-top: var(--spacing-xl);
    }

    .auth-card {
        padding: var(--spacing-lg);
        box-shadow: none;
        background: transparent;
        border: none;
    }

    .auth-logo h1 {
        font-size: 1.75rem;
    }
}

/* ================================================
   UTILITIES
   ================================================ */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--grey-500);
}

.text-accent {
    color: var(--accent);
}

.text-success {
    color: var(--success);
}

.text-error {
    color: var(--error);
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

.hidden {
    display: none !important;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--grey-300);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ================================================
   TABLET STYLES (768px+)
   ================================================ */
@media (min-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .container {
        max-width: 720px;
        padding: 0 var(--spacing-lg);
    }

    .section {
        padding: var(--spacing-xl) 0;
    }
}

/* ================================================
   DESKTOP STYLES (1024px+)
   ================================================ */
@media (min-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .container {
        max-width: 1200px;
        padding: 0 var(--spacing-xl);
    }

    .section {
        padding: var(--spacing-xxl) 0;
    }

    /* Show desktop nav, hide hamburger */
    .navbar-toggler {
        display: none;
    }

    .navbar-nav {
        display: flex;
        gap: var(--spacing-sm);
    }

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