/*
I certify that the CSS file I am submitting is all my own work.
None of it is copied from any source or any person.
Signed: Samuel Boye
Date: 12/08/2025
Class: CSS 305
File Name: styles.css
Assignment: Final Project – Car Parts Catalog
Description: Stylesheet for all site layout, typography, forms,
             tables, and component styling.
*/


/* Base Layout*/

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
                 "Segoe UI", sans-serif;
    color: #111827;
    background: radial-gradient(circle at top, #fdfdfd 0, #f3f4f6 40%, #e5e7eb 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header*/

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 5vw;
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    position: sticky;
    top: 0;
    z-index: 10;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.brand-mark {
    width: 26px;
    height: 26px;
    border-radius: 9px;
    background: linear-gradient(135deg, #3b82f6, #0ea5e9);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.35);
}

.brand-name {
    font-weight: 600;
    letter-spacing: 0.04em;
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 1.25rem;
    font-size: 0.95rem;
}

.nav-link {
    text-decoration: none;
    color: #4b5563;
    padding-bottom: 0.15rem;
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.nav-link:hover {
    color: #111827;
}

.nav-link.active {
    color: #111827;
    border-color: #111827;
}

/* Main layout*/

.layout {
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.4fr);
    gap: 3rem;
    padding: 3rem 8vw;
}

@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
        padding: 2rem 6vw 3rem;
    }
}

/* Optional single-column wrapper */
.page-main {
    flex: 1;
    padding: 3rem 8vw;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

@media (max-width: 900px) {
    .page-main {
        padding: 2rem 6vw 3rem;
    }
}

/* Hero section*/

.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.75rem;
}

.hero-title {
    font-size: clamp(2.3rem, 3vw + 1.5rem, 3.2rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin: 0;
}

.hero-subtitle {
    font-size: 1.02rem;
    color: #4b5563;
    max-width: 34rem;
    margin: 0.75rem 0 0;
}

/* panels/cards */

.panel {
    align-self: flex-start;
    padding: 1.8rem 1.9rem 1.6rem;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow:
        0 18px 40px rgba(15, 23, 42, 0.15),
        0 0 0 1px rgba(148, 163, 184, 0.15);
    width: 100%;
    overflow: hidden;
}

.panel-table {
    max-width: 100%;
    width: 100%;
}

.panel-title {
    margin: 0 0 0.35rem;
    font-size: 1.25rem;
}

.panel-text {
    margin: 0 0 1.1rem;
    font-size: 0.95rem;
    color: #4b5563;
}

/*Forms*/

.form {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.9rem;
}

.field label {
    font-weight: 500;
    color: #4b5563;
}

.field input {
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    padding: 0.55rem 0.75rem;
    font-size: 0.95rem;
    background: #f9fafb;
    transition: 0.15s ease;
}

.field input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
    background: #ffffff;
}

/* Buttons*/

.btn {
    border-radius: 999px;
    border: none;
    cursor: pointer;
    font-size: 0.92rem;
    padding: 0.55rem 1.15rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    transition: 0.15s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #111827, #374151);
    color: white;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.9);
    color: #111827;
    border: 1px solid rgba(148, 163, 184, 0.6);
}

/* Links*/

.link-button {
    font-size: 0.86rem;
    color: #2563eb;
    text-decoration: none;
}

.link-button:hover {
    text-decoration: underline;
}

/* Table Layout */

.table-wrapper {
    margin-top: 0.75rem;
    overflow-x: auto;
    overflow-y: auto;
    max-height: 420px;
}

.table-wrapper table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    table-layout: fixed;
}

.table-wrapper thead th {
    font-weight: 600;
    background: #f3f4f6;
    padding: 0.7rem 1rem;
}

.table-wrapper td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid #e5e7eb;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.table-wrapper td:first-child {
    white-space: normal;
}

/* Suppliers table */
.suppliers-panel th:nth-child(5),
.suppliers-panel td:nth-child(5) {
    text-align: center;
}

.suppliers-panel th:nth-child(6),
.suppliers-panel td:nth-child(6),
.suppliers-panel th:nth-child(7),
.suppliers-panel td:nth-child(7) {
    text-align: right;
}

/* Footer */

.site-footer {
    padding: 1rem 5vw 1.4rem;
    font-size: 0.78rem;
    text-align: center;
    color: #9ca3af;
    background: rgba(255, 255, 255, 0.9);
    border-top: 1px solid rgba(148, 163, 184, 0.2);
}

/* ---------------------------------
   DARK MODE SUPPORT
   --------------------------------- */
@media (prefers-color-scheme: dark) {

    body.body {
        color: #e5e7eb;
        background: radial-gradient(circle at top, #020617 0, #020617 40%, #030712 100%);
    }

    .site-header {
        background: rgba(15, 23, 42, 0.92);
        border-bottom: 1px solid rgba(148, 163, 184, 0.45);
    }

    .brand-name {
        color: #f9fafb;
    }

    .nav-link {
        color: #9ca3af;
    }

    .nav-link:hover,
    .nav-link.active {
        color: #e5e7eb;
        border-color: #e5e7eb;
    }

    .panel {
        background: rgba(15, 23, 42, 0.98);
        box-shadow:
            0 18px 40px rgba(0, 0, 0, 0.7),
            0 0 0 1px rgba(30, 64, 175, 0.4);
    }

    .hero-subtitle,
    .panel-text,
    .field label {
        color: #9ca3af;
    }

    .field input {
        background: #020617;
        border-color: #1f2937;
        color: #e5e7eb;
    }

    .field input:focus {
        border-color: #3b82f6;
        box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.5);
        background: #020617;
    }

    .table-wrapper thead th {
        background: #111827;
        color: #e5e7eb;
    }

    .table-wrapper td {
        border-bottom-color: #1f2937;
    }

    .btn-primary {
        background: linear-gradient(135deg, #2563eb, #4f46e5);
        color: #f9fafb;
    }

    .btn-ghost {
        background: rgba(15, 23, 42, 0.9);
        color: #e5e7eb;
        border-color: rgba(75, 85, 99, 0.9);
    }

    .link-button {
        color: #60a5fa;
    }

    .site-footer {
        background: rgba(15, 23, 42, 0.95);
        border-top-color: rgba(55, 65, 81, 0.9);
        color: #6b7280;
    }
}