/* ==========================================================================
   DK Entrepreneur Solutions - Premium Agency Stylesheet
   ========================================================================== */

/* --- CSS Variables --- */
:root {
    /* Colors */
    --clr-obsidian: #0A0A0A;
    --clr-obsidian-light: #161616;
    --clr-obsidian-lighter: #222222;
    --clr-text-main: #F4F4F4;
    --clr-text-muted: #A0A0A0;
    --clr-accent: #D4AF37;
    /* Champagne Gold */
    --clr-accent-hover: #F3E5AB;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Layout & Spacing */
    --max-width: 1400px;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Elements */
    --border-radius: 12px;
    --transition: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* --- Resets & Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: initial;
    /* Handled by Lenis */
}

body {
    background-color: var(--clr-obsidian);
    color: var(--clr-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Utilities */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

.text-gradient {
    background: linear-gradient(135deg, var(--clr-accent) 0%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    background-color: transparent;
    color: var(--clr-text-main);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.875rem;
    transition: all var(--transition);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background-color: var(--clr-text-main);
    transition: width var(--transition);
    z-index: -1;
}

.btn-primary:hover {
    color: var(--clr-obsidian);
    border-color: var(--clr-text-main);
}

.btn-primary:hover::before {
    width: 100%;
}

/* --- Section: Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md) 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.75rem;
}

/* --- Section: Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    /* Offset for fixed nav */
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50vw;
    height: 100vh;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -2px;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--clr-text-muted);
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

/* --- Section Headers --- */
.section-header {
    margin-bottom: var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--clr-accent);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1px;
}

/* --- Section: Proof / Portfolio --- */
.proof {
    padding: var(--spacing-xl) 0;
    background-color: var(--clr-obsidian-light);
}

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

.portfolio-item {
    position: relative;
}

.image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 16/9;
    background-color: var(--clr-obsidian-lighter);
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.2);
    transition: background var(--transition);
}

.portfolio-item:hover .image-wrapper img {
    transform: scale(1.05);
}

.portfolio-item:hover .image-wrapper::after {
    background: rgba(10, 10, 10, 0.6);
}

.overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition);
    z-index: 2;
}

.overlay-text {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    background: var(--clr-accent);
    color: var(--clr-obsidian);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-item:hover .overlay {
    opacity: 1;
}

.item-details {
    padding-top: var(--spacing-sm);
}

.item-title {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.item-category {
    color: var(--clr-text-muted);
    font-size: 0.875rem;
}

/* --- Section: Premium Resources (Whop) --- */
.resources {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.resources-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.resources-desc {
    color: var(--clr-text-muted);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.resources-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.resources-list li {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.resources-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--clr-accent);
    font-family: var(--font-heading);
}

.whop-btn {
    border-color: var(--clr-accent);
    color: var(--clr-accent);
}

.whop-btn::before {
    background-color: var(--clr-accent);
}

.whop-btn:hover {
    color: var(--clr-obsidian);
}

.resources-visual {
    perspective: 1000px;
}

.blueprint-card {
    background: linear-gradient(145deg, var(--clr-obsidian-light) 0%, var(--clr-obsidian) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transform: rotateY(-15deg) rotateX(5deg);
    box-shadow: -20px 20px 50px rgba(0, 0, 0, 0.5);
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.resources-visual:hover .blueprint-card {
    transform: rotateY(0deg) rotateX(0deg);
}

.blueprint-header {
    display: flex;
    gap: 8px;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
}

.dot:first-child {
    background-color: #ff5f56;
}

.dot:nth-child(2) {
    background-color: #ffbd2e;
}

.dot:last-child {
    background-color: #27c93f;
}

.blueprint-body .line {
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 12px;
}

.w-100 {
    width: 100%;
}

.w-90 {
    width: 90%;
}

.w-75 {
    width: 75%;
}

.w-50 {
    width: 50%;
}

/* --- Section: Process --- */
.process {
    padding: var(--spacing-xl) 0;
}

.process-desc {
    color: var(--clr-text-muted);
    max-width: 600px;
    font-size: 1.125rem;
    margin-top: var(--spacing-sm);
}

.process-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: 800px;
    margin-top: var(--spacing-lg);
}

.process-step {
    display: flex;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.process-step:last-child {
    border-bottom: none;
}

.step-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 300;
    color: var(--clr-accent);
    line-height: 1;
}

.step-content h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--clr-text-muted);
    font-size: 1rem;
}

/* --- Section: Gatekeeper (Footer) --- */
.gatekeeper {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background-color: var(--clr-obsidian-light);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.gatekeeper-container {
    max-width: 800px;
}

.gatekeeper-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.gatekeeper-text {
    font-size: 1.25rem;
    color: var(--clr-text-main);
    margin-bottom: var(--spacing-sm);
}

.gatekeeper-instruction {
    font-size: 1rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-lg);
}

.whatsapp-btn {
    background-color: #25D366;
    /* Official WhatsApp Green */
    border-color: #25D366;
    color: #fff;
    font-weight: 600;
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
    border-radius: 50px;
}

.whatsapp-btn svg {
    margin-right: 10px;
}

.whatsapp-btn::before {
    background-color: #1EBE5D;
}

.whatsapp-btn:hover {
    color: #fff;
    border-color: #1EBE5D;
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--clr-text-muted);
    font-size: 0.875rem;
}

/* --- Architectural Deep Dive Pages --- */
.project-hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-bottom: var(--spacing-xl);
    position: relative;
    padding-top: 100px;
    /* Offset for nav */
}

.project-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    opacity: 0.6;
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 10, 10, 0.2) 0%, var(--clr-obsidian) 100%);
    z-index: -1;
}

.project-title {
    font-size: clamp(3rem, 7vw, 5.5rem);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
}

.project-category {
    font-family: var(--font-heading);
    color: var(--clr-accent);
    font-size: 1.25rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.engineering-specs {
    padding: var(--spacing-xl) 0;
    background-color: var(--clr-obsidian);
}

.specs-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.specs-sidebar {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
}

.spec-item {
    margin-bottom: var(--spacing-md);
}

.spec-label {
    font-family: var(--font-heading);
    color: var(--clr-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.spec-value {
    font-size: 1.125rem;
    color: var(--clr-text-main);
}

.specs-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--clr-accent);
}

.specs-content p {
    font-size: 1.125rem;
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.project-ctas {
    padding: var(--spacing-xl) 0;
    background-color: var(--clr-obsidian-light);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.cta-card {
    background: var(--clr-obsidian-lighter);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform var(--transition);
}

.cta-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
}

.cta-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-card p {
    color: var(--clr-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .process-step {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .resources-content,
    .specs-grid,
    .cta-grid {
        grid-template-columns: 1fr;
    }

    .project-hero {
        min-height: 60vh;
    }
}