/* ============================================================
   Cloud Nalu — stylesheet
   Fonts: Lato (headings), Open Sans (body)
   Colors:
     --teal:       #04bfbf
     --teal-dark:  #2f9196
     --navy:       #0C1929
     --gray-dark:  #434A55
     --gray-mid:   #666
     --gray-light: #f4f4f4
     --white:      #ffffff
     --orange:     #E26B43  (accent)
   ============================================================ */

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

:root {
    --teal: #04bfbf;
    --teal-dark: #2f9196;
    --navy: #0c1929;
    --gray-dark: #434a55;
    --gray-mid: #666666;
    --gray-light: #f4f4f4;
    --white: #ffffff;
    --orange: #e26b43;
    --max-width: 1100px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Open Sans", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-dark);
    background: var(--white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "Lato", sans-serif;
    line-height: 1.25;
    color: var(--navy);
}

a {
    color: var(--teal-dark);
    text-decoration: none;
}

a:hover {
    color: var(--teal);
    text-decoration: underline;
}

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

/* ============================================================
   NAV
   ============================================================ */

.site-nav {
    background: var(--navy);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 56px;
    width: auto;
}

.nav-contact a {
    font-family: "Lato", sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--teal);
    letter-spacing: 0.02em;
}

.nav-contact a:hover {
    color: var(--white);
    text-decoration: none;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
    background: linear-gradient(
        135deg,
        var(--navy) 0%,
        #1a3a4a 60%,
        #1d5c5c 100%
    );
    color: var(--white);
    padding: 5rem 1.5rem 4.5rem;
    text-align: center;
}

.hero-inner {
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-family: "Lato", sans-serif;
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.hero-sub {
    font-family: "Open Sans", sans-serif;
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--teal);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.hero-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-block;
    background: var(--teal);
    color: var(--navy);
    font-family: "Lato", sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.8rem 2.2rem;
    border-radius: 3px;
    transition:
        background 0.2s,
        color 0.2s;
}

.btn-primary:hover {
    background: var(--white);
    color: var(--navy);
    text-decoration: none;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */

.contact-section {
    background: var(--gray-light);
    padding: 4rem 1.5rem;
}

.contact-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    align-items: start;
}

/* Form column */
.contact-form-wrap h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.contact-form-wrap > p {
    color: var(--gray-mid);
    margin-bottom: 1.5rem;
    font-size: 0.97rem;
}

/* Contact form fields */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: 1.25rem;
}

.form-group label {
    font-family: "Lato", sans-serif;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--navy);
}

.form-group label .optional {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    color: var(--gray-mid);
    font-size: 0.78rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1.5px solid #d0d5dd;
    border-radius: 4px;
    font-family: "Open Sans", sans-serif;
    font-size: 0.97rem;
    color: var(--gray-dark);
    background: var(--white);
    transition:
        border-color 0.18s,
        box-shadow 0.18s;
    appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #aab0bb;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(4, 191, 191, 0.15);
}

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
    border-color: #e05252;
}

.form-group textarea {
    resize: vertical;
    min-height: 130px;
}

.btn-submit {
    margin-top: 0.5rem;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.form-status {
    margin-top: 0.85rem;
    font-size: 0.93rem;
    min-height: 1.4em;
}

.form-status.success {
    color: #1a7c4b;
}

.form-status.error {
    color: #c0392b;
}

/* Sidebar column */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.sidebar-block h3 {
    font-family: "Lato", sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--teal-dark);
    margin-bottom: 0.4rem;
    border-bottom: 2px solid var(--teal);
    padding-bottom: 0.3rem;
}

.sidebar-block p {
    font-size: 0.95rem;
    color: var(--gray-dark);
    line-height: 1.6;
}

.sidebar-block a {
    color: var(--gray-dark);
    font-weight: 600;
}

.sidebar-block a:hover {
    color: var(--teal-dark);
}

.sidebar-social {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.sidebar-social a {
    display: inline-block;
    background: var(--navy);
    color: var(--white) !important;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.85rem;
    border-radius: 3px;
    transition: background 0.2s;
}

.sidebar-social a:hover {
    background: var(--teal-dark);
    text-decoration: none;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 3rem 1.5rem 2rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    font-family: "Lato", sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--teal);
    margin-bottom: 0.75rem;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-col a:hover {
    color: var(--teal);
    text-decoration: none;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.footer-social a {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white) !important;
    font-size: 0.78rem;
    padding: 0.25rem 0.7rem;
    border-radius: 3px;
    transition: background 0.2s;
}

.footer-social a:hover {
    background: var(--teal-dark);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    padding: 1rem 1.5rem;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 860px) {
    .contact-inner {
        grid-template-columns: 1fr;
    }

    .contact-sidebar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .contact-sidebar {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .nav-inner {
        height: 58px;
    }

    .nav-logo img {
        height: 36px;
    }
}