/* css/style.css
   GooSoft-Home — modular, BEM-lite, responsive
   Design tokens at top (colors, typography, spacing)
*/

/* -------------------------
   DESIGN TOKENS / VARIABLES
   ------------------------- */
:root {
    /* Color palette (hex codes) */
    --color-primary: #0b1b3f;
    /* Deep Indigo / Navy */
    --color-accent: #ff9f1c;
    /* Warm Amber / Soft Orange */
    --color-bg: #ffffff;
    /* White */
    --color-surface: #f5f7fb;
    /* Neutral light */
    --color-muted: #6b7280;
    /* Neutral grey text */
    --color-border: #e6e9ef;
    /* Neutral border */

    /* Accessibility-focused dark variants */
    --color-on-primary: #ffffff;
    --color-on-surface: #0b1b3f;

    /* Typography */
    --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    --font-display: var(--font-sans);

    /* Fluid typography (clamp) */
    --fs-xxs: clamp(0.75rem, 0.9vw, 0.85rem);
    --fs-xs: clamp(0.875rem, 1.1vw, 0.95rem);
    --fs-sm: clamp(1rem, 1.3vw, 1.05rem);
    --fs-md: clamp(1.125rem, 1.6vw, 1.25rem);
    --fs-lg: clamp(1.5rem, 2.6vw, 2rem);
    --fs-xl: clamp(2rem, 4vw, 3rem);

    /* Layout */
    --container-max: 1100px;
    --space-xxs: 6px;
    --space-xs: 10px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 40px;
    --space-xl: 72px;

    /* Border radius & elevation */
    --radius-sm: 8px;
    --radius-md: 14px;
    --elevation-1: 0 6px 18px rgba(11, 27, 63, 0.08);

    /* Transition */
    --motion-speed: 220ms;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    :root {
        --motion-speed: 0ms;
    }

    * {
        transition-duration: 0ms !important;
        animation-duration: 0ms !important;
    }
}

/* Base reset & sensible defaults */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--color-on-surface);
    background: var(--color-bg);
    font-size: var(--fs-sm);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Utility */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Accessibility helpers */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0 0 0 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* -------------------------
   HEADER / NAV
   ------------------------- */
.site-header {
    border-bottom: 1px solid var(--color-border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7));
    position: sticky;
    top: 0;
    z-index: 60;
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 700;
}

.brand__img {
    border-radius: 6px;
    display: block;
}

.brand__title {
    font-size: var(--fs-sm);
}

.brand__accent {
    color: var(--color-accent);
    margin-left: 4px;
    font-weight: 800;
}

/* nav */
.nav {
    display: flex;
}

.nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav__link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 6px 8px;
    border-radius: 6px;
}

.nav__link:focus,
.nav__link:hover {
    background: var(--color-surface);
    outline: none;
}

/* small screens: toggle */
.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    padding: 8px;
    cursor: pointer;
}

.nav-toggle__bar {
    width: 28px;
    height: 3px;
    background: var(--color-primary);
    display: block;
    border-radius: 2px;
}

/* -------------------------
   HERO
   ------------------------- */
.hero {
    padding: var(--space-lg) 0;
    background: linear-gradient(180deg, var(--color-surface), #fff);
}

.hero__inner {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: var(--space-lg);
    align-items: center;
}

.hero-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.9));
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--elevation-1);
}

.hero-card__title {
    margin: 0 0 var(--space-sm);
    font-size: var(--fs-xl);
    line-height: 1.02;
    color: var(--color-primary);
}

.hero-card__subtitle {
    margin: 0 0 var(--space-md);
    color: var(--color-muted);
    font-size: var(--fs-md);
}

.hero-card__ctas .btn {
    margin-right: var(--space-xs);
}

/* hero image */
.hero__image img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

/* -------------------------
   SECTIONS & GRID
   ------------------------- */
.section-title {
    margin: 0 0 var(--space-sm);
    font-size: var(--fs-lg);
    color: var(--color-primary);
}

.section-lead {
    margin: 0 0 var(--space-md);
    color: var(--color-muted);
}

/* rooms grid */
.rooms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.room {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--elevation-1);
}

.room h3 {
    margin: 0 0 var(--space-xs);
    color: var(--color-primary);
}

/* responsive */
@media (max-width: 900px) {
    .hero__inner {
        grid-template-columns: 1fr;
    }

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

    .nav {
        display: none;
    }

    .nav-toggle {
        display: block;
        margin-left: auto;
    }
}

/* -------------------------
   PORTFOLIO
   ------------------------- */
.portfolio-controls {
    display: flex;
    gap: 8px;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
}

.filter-btn[aria-pressed="true"] {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: transparent;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.project {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 0;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project__link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.project__media img {
    width: 100%;
    height: auto;
    display: block;
}

.project__body {
    padding: var(--space-sm);
}

.project__title {
    margin: 0 0 6px;
    font-size: var(--fs-md);
    color: var(--color-primary);
}

.project__summary {
    margin: 0;
    color: var(--color-muted);
    font-size: var(--fs-sm);
}

/* details fallback styling */
.project__details {
    padding: var(--space-sm) var(--space-md) var(--space-md);
    background: var(--color-surface);
    border-top: 1px dashed var(--color-border);
}

.project__details-summary {
    cursor: pointer;
    font-weight: 600;
    background: transparent;
    border: 0;
    padding: 6px 0;
}

/* single column on small screens */
@media (max-width: 700px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

/* -------------------------
   CASE STUDIES / SKILLS
   ------------------------- */
.cases .case {
    margin-bottom: var(--space-lg);
    background: var(--color-surface);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.timeline__item {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
}

.skill {
    margin-bottom: var(--space-sm);
}

.skill__label {
    font-size: var(--fs-sm);
    margin-bottom: 6px;
    color: var(--color-primary);
}

.skill__bar {
    height: 10px;
    background: var(--color-border);
    border-radius: 999px;
    position: relative;
    overflow: hidden;
}

.skill__bar::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--value, 50%);
    background: linear-gradient(90deg, var(--color-accent), #ffbf7a);
    display: block;
    transition: width var(--motion-speed) ease;
}

/* -------------------------
   CONTACT FORM
   ------------------------- */
.contact-form {
    max-width: 720px;
    display: grid;
    gap: var(--space-sm);
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

label {
    font-weight: 600;
    font-size: var(--fs-xs);
    color: var(--color-primary);
}

input,
textarea {
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    font-size: var(--fs-sm);
    background: transparent;
    color: var(--color-on-surface);
}

input:focus,
textarea:focus {
    outline: 3px solid rgba(11, 27, 63, 0.08);
    box-shadow: var(--elevation-1);
}

/* -------------------------
   BUTTONS
   ------------------------- */
.btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    font-size: var(--fs-sm);
}

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

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

/* -------------------------
   FOOTER
   ------------------------- */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-md) 0;
    margin-top: var(--space-lg);
    background: var(--color-bg);
}

.site-footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.site-footer__nav a {
    text-decoration: none;
    color: var(--color-muted);
    margin-left: 12px;
}

/* -------------------------
   MODAL (hidden by default)
   ------------------------- */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal[aria-hidden="true"] {
    display: none;
}

.modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 27, 63, 0.5);
}

.modal__panel {
    position: relative;
    z-index: 2;
    background: var(--color-bg);
    padding: var(--space-md);
    border-radius: 12px;
    max-width: 800px;
    width: calc(100% - 40px);
    max-height: 80vh;
    overflow: auto;
    box-shadow: var(--elevation-1);
}

.modal__close {
    position: absolute;
    top: 8px;
    right: 8px;
    border: 0;
    background: transparent;
    font-size: 24px;
    cursor: pointer;
}

.modal__content {
    padding-top: 24px;
}

/* Small tweaks */
a {
    color: var(--color-accent);
}