/* Eser Mobilya Fason — B2B Site Stylesheet */
:root {
    --primary: #f39221;
    --primary-dark: #d87e1a;
    --secondary: #1a3a52;
    --secondary-dark: #0f2638;
    --dark: #1a1a1a;
    --dark-soft: #2d2d2d;
    --light: #fdf7f0;
    --bg: #f7f7f8;
    --white: #ffffff;
    --gray: #5e6470;
    --muted: #9aa0aa;
    --border: #e6e7eb;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, .logo-mark {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.subtitle {
    display: inline-block;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    color: var(--dark);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
    justify-content: center;
}

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

.btn.primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(243, 146, 33, 0.32);
}

.btn.ghost {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn.ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--white);
}

.btn.full-width {
    width: 100%;
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'Outfit', sans-serif;
}

.logo-mark {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: 0.04em;
}

.logo-divider {
    width: 1px;
    height: 22px;
    background: var(--border);
}

.logo-sub {
    font-size: 0.78rem;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--dark);
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.btn-contact {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 22px;
    border-radius: 50px;
    font-size: 0.88rem !important;
}

.btn-contact:hover {
    background: var(--primary-dark);
    color: var(--white) !important;
}

.menu-toggle {
    display: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--dark);
}

/* Hero */
.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: var(--white);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.18;
    filter: grayscale(0.4);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26, 58, 82, 0.85) 0%, rgba(15, 38, 56, 0.92) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(243, 146, 33, 0.18);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(243, 146, 33, 0.32);
}

.hero h1 {
    font-size: clamp(2.2rem, 5.5vw, 3.6rem);
    margin-bottom: 1.25rem;
    font-weight: 800;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: clamp(1rem, 1.3vw, 1.15rem);
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 2.5rem;
    max-width: 620px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stats > div strong {
    display: block;
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.2rem;
}

.hero-stats > div span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Intro */
.intro {
    padding: 6rem 0;
    background: var(--white);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.intro-grid h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
}

.intro-grid p {
    color: var(--gray);
    font-size: 1.05rem;
    line-height: 1.85;
}

/* Services */
.services {
    padding: 6rem 0;
    background: var(--bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 2rem;
    transition: var(--transition);
}

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

.service-card .icon {
    width: 54px;
    height: 54px;
    border-radius: 12px;
    background: rgba(243, 146, 33, 0.12);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
}

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.6rem;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    font-size: 0.93rem;
    line-height: 1.65;
}

/* Process */
.process {
    padding: 6rem 0;
    background: var(--secondary);
    color: var(--white);
}

.process h2 { color: var(--white); }

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.process-step {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    padding: 2rem;
    transition: var(--transition);
}

.process-step:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
}

.step-num {
    font-family: 'Outfit', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1;
}

.process-step h3 {
    font-size: 1rem;
    color: var(--white);
    font-weight: 500;
    line-height: 1.5;
}

/* Materials */
.materials {
    padding: 6rem 0;
    background: var(--white);
}

.materials-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.materials-inner h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    margin-bottom: 1rem;
}

.materials-inner p {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.8;
}

.materials-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.materials-list li {
    background: var(--bg);
    padding: 1rem 1.25rem;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border: 1px solid var(--border);
}

.materials-list i {
    color: var(--primary);
}

/* FAQ */
.faq {
    padding: 6rem 0;
    background: var(--bg);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.faq-question:hover { color: var(--primary); }
.faq-question i { color: var(--primary); font-size: 0.9rem; transition: var(--transition); }

.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-item.active { border-color: var(--primary); }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    color: var(--gray);
    line-height: 1.7;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.25rem;
}

/* Contact */
.contact {
    padding: 6rem 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--gray);
    margin-bottom: 2rem;
}

.contact-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-details li {
    display: flex;
    gap: 0.85rem;
    align-items: center;
    color: var(--gray);
    font-size: 0.96rem;
}

.contact-details i {
    color: var(--primary);
    width: 20px;
}

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

.wa-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.wa-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: #25D366;
    color: var(--white);
    padding: 12px 18px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.94rem;
    transition: var(--transition);
}

.wa-btn:hover {
    background: #1ebe5a;
    transform: translateX(4px);
}

/* Form */
.contact-form {
    background: var(--bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--dark);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(243, 146, 33, 0.12);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-consent label {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    cursor: pointer;
    font-size: 0.83rem;
    font-weight: 400;
    line-height: 1.55;
    color: var(--gray);
}

.form-consent input[type="checkbox"] {
    margin-top: 3px;
    width: 17px;
    height: 17px;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
}

#form-result {
    margin-top: 1rem;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    display: none;
}

#form-result.form-success {
    display: block;
    background: rgba(40, 167, 69, 0.12);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

#form-result.form-error {
    display: block;
    background: rgba(220, 53, 69, 0.12);
    color: #dc3545;
    border: 1px solid rgba(220, 53, 69, 0.3);
}

.contact-form button[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Footer */
footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 4rem 0 0;
}

footer .logo-mark { color: var(--white); }

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-desc {
    margin-top: 1.25rem;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.92rem;
    line-height: 1.7;
    max-width: 380px;
}

.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
    color: var(--primary);
    font-weight: 500;
}

/* Floating WhatsApp */
.floating-wa {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25D366;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
    z-index: 50;
    transition: var(--transition);
}

.floating-wa:hover {
    transform: scale(1.08);
}

/* Responsive */
@media (max-width: 992px) {
    .intro-grid,
    .materials-inner,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .container { padding: 0 1.25rem; }
    .nav-links {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        padding: 1rem 1.5rem;
        border-bottom: 1px solid var(--border);
        transform: translateY(-110%);
        transition: var(--transition);
    }
    .nav-links.active { transform: translateY(0); }
    .nav-links li { padding: 0.6rem 0; }
    .menu-toggle { display: block; }

    .hero { padding: 7rem 0 3rem; min-height: 85vh; }
    .hero-stats { gap: 1.5rem; }
    .hero-stats > div strong { font-size: 1.4rem; }

    .services-grid,
    .process-grid,
    .materials-list { grid-template-columns: 1fr; }

    .form-group.two-col { grid-template-columns: 1fr; }

    .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; gap: 0.5rem; }

    .floating-wa { bottom: 16px; right: 16px; }
}